Sounds like you have some sound troubleshooting
advice given already.
If your transformer / ignitor has at least 12 volts
going in to it, but you can not see a bright blue
spark jump between the scredriver and the spring
{isee above psot by Larry[/i] you need a new
ignitor / transformer, we can ship you one today.
Here is some general troubleshooting information that
may be useful to you or others,
Compliments of: Hydro Tek.
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<td width="616" valign="top"><p align="center"><a name="top" id="top"><font size="5"><strong>Hydro Tek Pressure Washer Troubleshooting Guide</strong></font></a></p>
<p align="center"><font size="3">Power System: <a href="#psgd">Gas or Diesel</a> | <a href="#psed">Electric Motor</a><br>
Heating System: <a href="#burn_diesel">Diesel Fired</a> | <a href="#burn_ng">Natural Gas / Liquid Propane</a> <br>
<a href="#pump">Pumping System</a></font></p>
<p align="center"><font size="3">Probable causes are listed with most likely cause first.<br>
<i>Repairs should be made by qualified technicians only.</i></font></p>
<h2 align="left"><a name="psgd" id="psgd">Power System: Gasoline or Diesel Driven</a></h2>
<table border="1">
<tr>
<td valign="top"><h3>Problem</h3></td>
<td valign="top"><h3>Probable Cause</h3></td>
<td valign="top"><h3>Remedy</h3></td>
</tr>
<tr>
<td valign="top"><p><b>Engine will not start or crank over.</b></p></td>
<td valign="top"><p>Battery dead.</p></td>
<td valign="top"><p>Charge or replace battery, add electrolyte if battery is new</p></td>
</tr>
<tr>
<td valign="top"><p> </p></td>
<td valign="top"><p>Dirty Battery Contacts</p></td>
<td valign="top"><p>Clean connections</p></td>
</tr>
<tr>
<td valign="top"><p> </p></td>
<td valign="top"><p>Battery cables disconnected</p></td>
<td valign="top"><p>Connect or replace damaged cables.</p></td>
</tr>
<tr>
<td valign="top"><p> </p></td>
<td valign="top"><p>Engine, pump, or gearbox is seized.</p></td>
<td valign="top"><p>Replace or repair seized part.</p></td>
</tr>
<tr>
<td valign="top"><p> </p></td>
<td valign="top"><p>Key switch, solenoid or starter on engine defective.</p></td>
<td valign="top"><p>Repair or replace faulty component.</p></td>
</tr>
<tr>
<td valign="top"><p><b>Engine will not start but will crank over</b></p></td>
<td valign="top"><p>Engine power switch is off or defective.</p></td>
<td valign="top"><p>Check engine power switch.</p></td>
</tr>
<tr>
<td valign="top"><p> </p></td>
<td valign="top"><p>Low oil shut down is activated.</p></td>
<td valign="top"><p>Add oil to engine, check more frequently.</p></td>
</tr>
<tr>
<td valign="top"><p> </p></td>
<td valign="top"><p>Low on fuel.</p></td>
<td valign="top"><p>Fill with the appropriate fuel, bleed injector pump on diesel engines. Bleed injector pump on diesel engines</p></td>
</tr>
<tr>
<td valign="top"><p> </p></td>
<td valign="top"><p>Fuel filter is clogged.</p></td>
<td valign="top"><p>Replace or clean fuel filter, bleed injector pump on diesel engines.</p></td>
</tr>
<tr>
<td valign="top"><p> </p></td>
<td valign="top"><p>Engine flooded or starved.</p></td>
<td valign="top"><p>Choke only as required (not applicable to diesels).</p></td>
</tr>
<tr>
<td valign="top"><p><b>Engine bogs down under load, whenever spray gun is triggered.</b></p></td>
<td valign="top"><p>Engine needs to be repaired or replaced.</p></td>
<td valign="top"><p>See engine manual or engine dealer.</p></td>
</tr>
<tr>
<td valign="top"><p> </p></td>
<td valign="top"><p>Operating in high elevation.</p></td>
<td valign="top"><p>Lower the pressure on the unit and check for correct engine speed (RPM).</p></td>
</tr>
<tr>
<td valign="top"><p> </p></td>
<td valign="top"><p>Carbon deposits on cylinder head.</p></td>
<td valign="top"><p>Remove head and clean off deposits.</p></td>
</tr>
</table>
<h2><a name="psed" id="psed">Power System: Electric Driven</a> | <a href="#top">Top</a></h2>
<table border="1">
<tr>
<td valign="top" width="191"><h3>Problem</h3></td>
<td valign="top" width="164"><h3>Probable Cause</h3></td>
<td valign="top" width="263"><h3>Remedy</h3></td>
</tr>
<tr>
<td valign="top" width="191"><p><b>Electric motor does not start</b>.</p></td>
<td valign="top" width="164"><p>No electric power.</p></td>
<td valign="top" width="263"><p>Check cord, plug, socket, and breaker.</p></td>
</tr>
<tr>
<td valign="top" width="191"><p> </p></td>
<td valign="top" width="164"><p>Thermal overload in the motor/or starter has been tripped.</p></td>
<td valign="top" width="263"><p>Reset manual overload by depressing the thermal switch on the outside of the motor or starter after the motor has cooled. <font color="#FF0000">CAUTION! Automatic overload will restart the motor automatically when it has cooled.</font></p></td>
</tr>
<tr>
<td valign="top" width="191"><p> </p></td>
<td valign="top" width="164"><p>Power switch inoperative.</p></td>
<td valign="top" width="263"><p>Check power switch.</p></td>
</tr>
<tr>
<td valign="top" width="191"><p> </p></td>
<td valign="top" width="164"><p>Electric motor or wiring failure.</p></td>
<td valign="top" width="263"><p>Replace or repair motor and/or wiring.</p></td>
</tr>
<tr>
<td valign="top" width="191"><p> </p></td>
<td valign="top" width="164"><p>No water pressure at inlet</p></td>
<td valign="top" width="263"><p>Connect to appropriate water supply</p></td>
</tr>
<tr>
<td valign="top" width="191"><p><b>Machine will not auto-start (if equipped)</b></p></td>
<td valign="top" width="164"><p>Must have adequate water supply</p></td>
<td valign="top" width="263"><p>25 psi minimum</p></td>
</tr>
<tr>
<td valign="top" width="191"><p> </p></td>
<td valign="top" width="164"><p>Coil scale build up</p></td>
<td valign="top" width="263"><p>Descale coil for better water flow.</p></td>
</tr>
<tr>
<td valign="top" width="191"><p> </p></td>
<td valign="top" width="164"><p>Check filter screen and inlet pressure</p></td>
<td valign="top" width="263"><p>Remove spray nozzle and pull trigger gun to check auto-start function.</p></td>
</tr>
<tr>
<td valign="top" width="191"><p> </p></td>
<td valign="top" width="164"><p>Inlet flow switch defective or jammed with debris</p></td>
<td valign="top" width="263"><p>Check mechanical function and electrical signal to relay by testing for continuity on #2 and #4 of the time delay. If no continuity with the trigger pulled replace inlet flow switch. If continuity is present, remove wires from #1 and #5 of the time delay relay and make connection between the two wires and test the machine. If the machine works replace the time delay relay. If machine does not work check and replace the contactor or motor starter.</p></td>
</tr>
</table>
<h2><a name="pump" id="pump">Pumping System</a> | <a href="#top">Top</a></h2>
<table border="1">
<tr>
<td valign="top" width="190"><h3>Problem</h3></td>
<td valign="top" width="169"><h3>Probable Cause</h3></td>
<td valign="top" width="259"><h3>Remedy</h3></td>
</tr>
<tr>
<td valign="top" width="190"><p><b>Trigger gun leaks or will not shut off.</b></p></td>
<td valign="top" width="169"><p>Debris in gun valve assembly.</p></td>
<td valign="top" width="259"><p>Clean valve assembly or replace gun.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p><b>Pump runs but there is no spray pressure.</b></p></td>
<td valign="top" width="169"><p>Water turned off.</p></td>
<td valign="top" width="259"><p>Turn water on.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Nozzle is plugged.</p></td>
<td valign="top" width="259"><p>Clean or replace with proper size.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Inlet chemical injection valve is open, without the end of the pickup tube inserted into detergent.</p></td>
<td valign="top" width="259"><p>Close soap valve or submerge detergent pickup tube into solution.</p></td>
</tr>
<tr>
<td valign="top" width="190"> </td>
<td valign="top" width="169">Coil on hot water machines is obstructed.</td>
<td valign="top" width="259">Clean obstruction or scale deposits from coil with coil cleaner.</td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Pump dry, needs to be primed.</p></td>
<td valign="top" width="259"><p>Crack open fitting on the high pressure outlet of the pump until water flows out.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p><b>Pump runs but has low spray pressure.</b></p></td>
<td valign="top" width="169"><p>Nozzle not installed.</p></td>
<td valign="top" width="259"><p>Install proper sized nozzle.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Dual wand valve is open.</p></td>
<td valign="top" width="259"><p>Dual wand valve must be closed and high pressure nozzle installed.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Leaky discharge hose or quick coupler.</p></td>
<td valign="top" width="259"><p>Replace hose, quick coupler, or O-ring in the quick coupler.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Inlet strainer clogged.</p></td>
<td valign="top" width="259"><p>Clean and check more frequently.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Worn or wrong size nozzle.</p></td>
<td valign="top" width="259"><p>Replace nozzle of proper size.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Belt slippage</p></td>
<td valign="top" width="259"><p>Tighten or replace with correct belt.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Unloader valve worn or improperly adjusted.</p></td>
<td valign="top" width="259"><p>Install pressure gauge on pump head to adjust pressure. Check valve seat on Unloader.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Air leak in inlet plumbing.</p></td>
<td valign="top" width="259"><p>Reseal fittings and inspect inlet hoses for air leaks.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p><b>Pump runs but there is erratic, fluctuating pressure.</b></p></td>
<td valign="top" width="169"><p>Inadequate incoming water supply.</p></td>
<td valign="top" width="259"><p>Increase water supply flow.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Stuck inlet or discharge valves.</p></td>
<td valign="top" width="259"><p>Clean out or replace worn valves</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Restricted inlet or air entering the inlet plumbing on the pump.</p></td>
<td valign="top" width="259"><p>Check fittings and hose for air tight seal, clean inlet strainer screen.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Leaking H.P. seals.</p></td>
<td valign="top" width="259"><p>Replace seals.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Leaking L.P. seals.</p></td>
<td valign="top" width="259"><p>Pressure feed the pump and replace LP seals if water leaks from the pump head.</p></td>
</tr>
<tr>
<td valign="top" height="57" width="190"><p><b>Excessive crankshaft play or loud, knocking noise in pump.</b></p></td>
<td valign="top" width="169" height="57"><p>Broken or worn bearing or connecting rod in crankcase.</p></td>
<td valign="top" width="259" height="57"><p>Replace pump or bearing.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p><b>Oil leaking from pump.</b></p></td>
<td valign="top" width="169"><p>Loose drain plug or damaged seal.</p></td>
<td valign="top" width="259"><p>Locate point of oil leakage and replace damaged O-ring or seal.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p><b>Inlet injection will not siphon chemical.</b></p></td>
<td valign="top" width="169"><p>Check valve in strainer clogged.</p></td>
<td valign="top" width="259"><p>Clean or replace. Rinse after each use.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Chemical valve not open or clogged.</p></td>
<td valign="top" width="259"><p>Open chemical valve or clean.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Strainer not submerged in solution.</p></td>
<td valign="top" width="259"><p>Submerge strainer and replenish chemical.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Detergent hose cut or kinked</p></td>
<td valign="top" width="259"><p>Inspect hose, replace as necessary.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p><b>Water is emitted from the chemical pickup tube</b></p></td>
<td valign="top" width="169"><p>Check valve malfunctioning.</p></td>
<td valign="top" width="259"><p>Repair or replace check valve.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p><b>Downstream injector will not siphon chemical.</b></p></td>
<td valign="top" width="169"><p>Brass knob on injector is closed.</p></td>
<td valign="top" width="259"><p>Open by turning counter clockwise.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Unit not in low pressure mode.</p></td>
<td valign="top" width="259"><p>Open dual wand or install low pressure tip.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Detergent hose cut or kinked.</p></td>
<td valign="top" width="259"><p>Inspect hose, replace as required.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Strainer plugged or not submerged.</p></td>
<td valign="top" width="259"><p>Check screen on strainer pickup tube.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Internal injector parts corroded or stuck.</p></td>
<td valign="top" width="259"><p>Disassemble, clean or replace.</p></td>
</tr>
<tr>
<td valign="top" width="190"><p> </p></td>
<td valign="top" width="169"><p>Outlet water temperature too high.</p></td>
<td valign="top" width="259"><p>Use with cold water (150º Maximum)</p></td>
</tr>
<tr>
<td valign="top" width="190"><b>Pressure relief reliving water</b></td>
<td valign="top" width="169">Unloader failure / coil overheating / Excessive pressure </td>
<td valign="top" width="259">Turn machine off wait a few minutes and restart. If problem continues take to an authorized repair center for complete system check.</td>
</tr>
<tr>
<td valign="top" width="190"><b>Burst disk relieving water</b></td>
<td valign="top" width="169">Excessive pressure and / or system spikes</td>
<td valign="top" width="259">Take in to an authorized repair center for a complete system check.</td>
</tr>
</table>
<h2><a name="burn_diesel" id="burn_diesel">Heating Burner System - Diesel Fired</a> | <a href="#top">Top</a></h2>
<table border="1">
<tr>
<td valign="top"><h3>Problem</h3></td>
<td valign="top"><h3>Probable Cause</h3></td>
<td valign="top"><h3>Remedy</h3></td>
</tr>
<tr>
<td valign="top"><font size="3" face="Arial"><b>Burner will not fire.<br>
</b></font><b><font color="#FF0000" size="2" face="Arial">WARNING: High voltage on igniter can cause electrical shock. Disconnect power before servicing.</font></b></td>
<td valign="top"><font size="3" face="Arial">Burner switch not on.</font></td>
<td valign="top"><font size="3" face="Arial">Turn switch on; Thermostat on if equipped.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Diesel fuel level low.</font></td>
<td valign="top"><font size="3" face="Arial">Fill burner tank with #2 diesel or other approved fuel.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Trigger on spray gun not pulled.</font></td>
<td valign="top"><font size="3" face="Arial">Squeeze trigger to fire burner.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Fuel filter plugged.</font></td>
<td valign="top"><font size="3" face="Arial">Clean and / or tighten fuel filter. (Check fuel pressure)</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Spray nozzle plugged.</font></td>
<td valign="top"><font size="3" face="Arial">Clean spray nozzle.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Overload on burner motor tripped.</font></td>
<td valign="top"><font size="3" face="Arial">Reset overload, locate and correct source of overload.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Nozzle not in wand.</font></td>
<td valign="top"><font size="3" face="Arial">Install nozzle in wand.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Low water pump pressure.</font></td>
<td valign="top"><font size="3" face="Arial">See pumping systems trouble shooting.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Fuel pump or nozzle stopped.</font></td>
<td valign="top"><font size="3" face="Arial">Check fuel pressure, filter, fuel lines. Replace fuel pump and/or nozzle.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Vacuum, Flow, Pressure or Temperature switch faulty.</font></td>
<td valign="top"><font size="3" face="Arial">Check electrical continuity with pump spraying and burner on.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Fuel solenoid valve faulty.</font></td>
<td valign="top"><font size="3" face="Arial">Replace fuel valve if it does not open when power is applied.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Low generator voltage output.</font></td>
<td valign="top"><font size="3" face="Arial">Adjust generator RPM for proper voltage under full load conditions.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Burner relay faulty (12-V Burner only)</font></td>
<td valign="top"><font size="3" face="Arial">Replace burner relay.</font></td>
</tr>
<tr>
<td valign="top"><font size="3" face="Arial"><b>Burner will not fire, plus diesel fumes are emitted from the exhaust port.</b></font><b><font color="#FF0000" size="3" face="Arial"><br>
</font><font color="#FF0000" size="2" face="Arial">WARNING: Replace insulation. Unburned fuel can saturate it and cause a fire.</font></b></td>
<td valign="top"><font size="3" face="Arial">Fuel to air ratio out of adjustment.</font></td>
<td valign="top"><font size="3" face="Arial">Set air band and fuel pressure to specs.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Fuel nozzle partially clogged.</font></td>
<td valign="top"><font size="3" face="Arial">Replace nozzle of proper size.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Ignition transformer not providing spark to fuel.</font></td>
<td valign="top"><font size="3" face="Arial">Replace ignition transformer, clean and adjust electrodes.</font></td>
</tr>
<tr>
<td valign="top"><font size="3" face="Arial"><b>Burner fires and smokes.</b></font></td>
<td valign="top"><font size="3" face="Arial">Fuel to air ratio out of adjustment.</font></td>
<td valign="top"><font size="3" face="Arial">Set air band and fuel pressure to specs.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Excessive soot on coils.</font></td>
<td valign="top"><font size="3" face="Arial">Clean soot off to improve air flow.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Improper voltage at burner</font></td>
<td valign="top"><font size="3" face="Arial">Adjust RPM of generator (if equipped)</font></td>
</tr>
<tr>
<td valign="top"><font size="3" face="Arial"><b>Discharge water temperature exceeds recommended operating temperature.</b></font></td>
<td valign="top"><font size="3" face="Arial">Burner input too high for conditions.</font></td>
<td valign="top"><font size="3" face="Arial">Decrease fuel pump pressure and/or fuel nozzle size.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Water flow restricted.</font></td>
<td valign="top"><font size="3" face="Arial">Clean or replace nozzle of proper size. Descale coil and clear obstructions.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">High temperature limit switch faulty or set too high.</font></td>
<td valign="top"><font size="3" face="Arial">Replace or reset temperature limit switch.</font></td>
</tr>
<tr>
<td valign="top"><font size="3" face="Arial"><b>Burner continues to fire even when trigger on spray gun is released</b></font></td>
<td valign="top"><font size="3" face="Arial">Faulty Flow, Pressure or Vacuum switch.</font></td>
<td valign="top"><font size="3" face="Arial">Replace switch.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top">Faulty fuel solenoid</td>
<td valign="top">Replace solenoid</td>
</tr>
<tr>
<td valign="top"><font size="3" face="Arial"><b>Discharge water temperature not reaching maximum operating temperature.</b></font></td>
<td valign="top"><font size="3" face="Arial">Burner input too low for conditions</font></td>
<td valign="top"><font size="3" face="Arial">Increase fuel pump pressure and/or fuel nozzle size.</font></td>
</tr>
<tr>
<td valign="top"><font size="3" face="Arial"><b>Battery keeps losing voltage. (For 12 volt burner systems)</b></font></td>
<td valign="top"><font size="3" face="Arial">Battery voltage Low.</font></td>
<td valign="top"><font size="3" face="Arial">Have battery checked and load test, charge if low and replace if necessary. Allow water to cool 2 min. before shutting off engine.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">RPM too low.</font></td>
<td valign="top"><font size="3" face="Arial">Engine RPM should be 3600 RPM w/no load.</font></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Engine charging system faulty.</font></td>
<td valign="top"><font size="3" face="Arial">Check engine charging system - Must have 16 Amp output.</font></td>
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<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Electrodes misadjusted</font></td>
<td valign="top"><font size="3" face="Arial">Adjust electrodes to maximum 1/8" gap.</font></td>
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<tr>
<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Fuel pump pressure too high.</font></td>
<td valign="top"><font size="3" face="Arial">Fuel pump pressure should be approximately 100 to 110 PSI. </font></td>
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<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Air band open too far.</font></td>
<td valign="top"><font size="3" face="Arial">Adjust for proper burn.</font></td>
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<td valign="top"> </td>
<td valign="top"><font size="3" face="Arial">Burner amp draw too high.</font></td>
<td valign="top"><font size="3" face="Arial">Check amp draw of burner motor - should be 13 amp or less. Check amp draw of transformer should be 4.2 or less.</font></td>
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</table>
<h2><a name="burn_ng" id="burn_ng">Heating/Burner System - Natural Gas or Liquid Propane Fired</a> | <a href="#top">Top</a></h2>
<table border="1">
<tr>
<td class="hydrotek"><h3>Problem </h3></td>
<td class="hydrotek"><h3>Probable Cause</h3></td>
<td class="hydrotek"><h3>Remedy</h3></td>
</tr>
<tr>
<td class="hydrotek"><font size="3" face="Arial"><b>Pilot will not light, burner will not fire.</b></font></td>
<td class="hydrotek"><font size="3" face="Arial">Burner switch not on.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Turn switch on.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Trigger not pulled.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Pull trigger. Burner should fire <u>only</u> when trigger is pulled.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Gas valve turned off.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Turn gas valve on.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">No voltage to valve.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Check for 24 VAC between pilot valve(PV) and PV/MV. Valve will operate between 20.5 and 28.5 VAC.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Pilot orifice plugged.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Remove orifice & clean.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Defective ignition module.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Check for 24 VAC incoming @ 24v & 24v ground. (If you get voltage to module, but not through module, replace.)</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Defective transformer</font></td>
<td class="hydrotek"><font size="3" face="Arial">Check for 24v output. If no voltage, replace.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Defective flow switch.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Replace.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Defective thermostat.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Replace.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Faulty rocker switch.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Replace.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Igniter not working.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Test for spark. Test for continuity between ignition wire and ground.<br>
</font><font color="#FF0000" size="3" face="Arial">WARNING: High voltage igniter can cause electrical shock.</font></td>
</tr>
<tr>
<td class="hydrotek"><font size="3" face="Arial"><b>Pilot lights, but burner will not fire.</b></font></td>
<td class="hydrotek"><font size="3" face="Arial">Check for 24 VAC between main valve (MV) and PV/MV.</font></td>
<td class="hydrotek"><font size="3" face="Arial">If no VAC @ valve, replace module. If you get voltage, replace valve.</font></td>
</tr>
<tr>
<td class="hydrotek"><font size="3" face="Arial"><b>Burner fires, but goes out.</b></font></td>
<td class="hydrotek"><font size="3" face="Arial">Check for continuity between ignition cable and ground wire.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Assure good ground.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Faulty ignition module.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Replace module.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Excess draft.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Protect from windy conditions.</font></td>
</tr>
<tr>
<td class="hydrotek"><font size="3" face="Arial"><b>NG or LP odor is present.<br>
</b></font><b><font color="#FF0000" size="3" face="Arial">WARNING: Check all NG / LP connections with soap solution before operation.</font></b></td>
<td class="hydrotek"><font size="3" face="Arial">Gas leak ahead of valve.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Turn gas off. Call gas supplier.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Lockout not working.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Replace module.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Valve stuck.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Turn main gas valve off. Replace valve.</font></td>
</tr>
<tr>
<td class="hydrotek"><font size="3" face="Arial"><b>Discharge water temperature to high.</b></font></td>
<td class="hydrotek"><font size="3" face="Arial">Faulty thermostat.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Replace.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Water restriction.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Clean or replace spray nozzle, descale coil, remove obstructions.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Incoming gas pressure to high.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Lower gas pressure.</font></td>
</tr>
<tr>
<td class="hydrotek"><font size="3" face="Arial"><b>Discharge water temperature not reaching maximum operating temperature.</b></font></td>
<td class="hydrotek"><font size="3" face="Arial">Worn spray nozzle.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Replace spray nozzle with proper size.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Gas pressure too low.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Increase gas pressure or install additional jets.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Draft under burner manifold.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Prevent down draft with installation of down draft diverter. Prevent side draft with nonflammable barrier.</font></td>
</tr>
<tr>
<td class="hydrotek"><font size="3" face="Arial"><b>Burner continues to fire even when water is not being sprayed.</b></font></td>
<td class="hydrotek"><font size="3" face="Arial">Faulty flow switch.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Replace.</font></td>
</tr>
<tr>
<td> </td>
<td class="hydrotek"><font size="3" face="Arial">Main gas valve stuck open.</font></td>
<td class="hydrotek"><font size="3" face="Arial">Replace main gas valve.</font></td>
</tr>
<tr>
<td class="hydrotek"><font size="3" face="Arial"><b>Valve has had water sprayed on it. Has been submerged in water and does not work.</b></font></td>
<td class="hydrotek"><font size="3" face="Arial">Flood or accidental spraying.</font></td>
<td class="hydrotek"><font color="#FF0000" size="3" face="Arial"><u>Replace valve</u></font><font size="3" face="Arial">: Do not attempt to repair or clean out.</font></td>
</tr>
<tr>
<td class="hydrotek"><font size="3" face="Arial"><b>Ignition module has been subjected to water or moisture.</b></font></td>
<td class="hydrotek"><font size="3" face="Arial">Flood or accidental spraying.</font></td>
<td class="hydrotek"><font color="#FF0000" size="3" face="Arial"><u>Replace module</u></font><font size="3" face="Arial">: Do not attempt to repair.</font></td>
</tr>
</table>
<p align="center" class="hydrotek"><strong><big><a href="#top">Top</a></big></strong> </td>
</tr>
</table>
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