27
TROUBLE SHOOTING GUIDE
BEFORE ATTEMPTING TO TROUBLESHOOT, PURGE YOUR UNIT AND INITIALLY LIGHT THE PILOT AND THE MAIN BURNER WITH THE GLASS DOOR REMOVED.
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| Main burner goes out; Pilot fl ame is not large enough or | - | turn up pilot fl ame. | ||||||
| pilot stays on. | not engulfi ng the thermopile | - replace pilot assembly. | ||||||
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| Thermopile shorting | - clean thermopile connection to the valve. Reconnect. | ||||||
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| - replace thermopile / valve. | ||||
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| Remote wall switch wire is too | - | shorten wire to correct length or wire gauge. | |||||
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| long; too much resistance in the |
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| system. |
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| Faulty thermostat or switch. | - | replace. | |||||
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Main burner goes out; Refer to "MAIN BURNER GOES OUT; PILOT STAYS ON" | |||||||||
pilot goes out. |
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Vent is blocked | - | check for vent blockage. | |||||||
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| Vent is | - | check joint seals and installation. | |||||
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| 5" fl exible vent has become dis- | - | ||||||
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| connected from fi replace. |
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| Pilot goes out when the |
| System is not correctly purged. | - | purge the gas line with the glass door removed. | ||||
| gas knob is released. |
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| Out of propane gas. | - | fi ll the tank. | |||||
| The gas valve has |
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| Pilot fl ame is not large enough | - | turn up the pilot fl ame. |
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| an interlock device |
| Pilot fl ame is not engulfi ng the | - gently twist the pilot head to improve the fl ame pattern around the thermo- | |||||
| which will not allow |
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| the pilot burner to be |
| thermocouple. | couple. | |||||
| lit until the thermo- |
| Thermocouple shorting / faulty. | - | loosen and tighten thermocouple. | ||||
| couple has cooled. |
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| - | clean thermocouple and valve connection. | |||
| Allow approximately |
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| - | replace thermocouple. | |||
| 60 seconds for the |
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| - | replace valve. | |||
| thermocouple to |
| Faulty valve. | - | replace. | ||||
| cool. |
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| Pilot burning; no gas |
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| Thermostat or switch is defec- | - | connect a jumper wire across the wall switch terminals; if main burner lights, |
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| to main burner; gas |
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| tive. | replace switch / thermostat. | ||||
| knob is on 'HI'; wall |
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| Wall switch wiring is defective. | - disconnect the switch wires & connect a jumper wire across terminals 1 & 3; if | ||||
| switch / thermostat |
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| the main burner lights, check the wires for defects and / or replace wires. | ||||
| is on. | Main burner orifi ce is plugged. | - | remove stoppage in orifi ce. | |||||
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| Faulty valve. | - | replace. | ||||
Pilot will not light. |
| No spark at pilot burner | - | check if pilot can be lit by a match | |||||
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| - | check that the wire is connected to the push button igniter. | |||
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| - | check if the push button igniter needs tightening. | |||
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| - | replace the wire if the wire insulation is broken or frayed. | |||
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| - | replace the electrode if the ceramic insulator is cracked or broken. | |||
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| - | replace the push button igniter. | |||
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| Out of propane gas | - | fi ll the tank. |
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| Spark gap is incorrect | - spark gap should be 0.150" to 0.175" (5/32" to 11/64" approx.) from the electrode | ||||||
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| tip and the pilot burner. To ensure proper electrode location, tighten securing nut | ||||
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| (fi nger tight plus 1/4 turn). | ||||
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| No gas at the pilot burner | - | check that the manual valve is turned on. | |||||
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| - | check the pilot orifi ce for blockage. | |||
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| - | replace the valve. | |||
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| - | call the gas distributor. | |||
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| Pilot goes out while | Gas piping is undersized. | - turn on all gas appliances and see if pilot fl ame fl utters, diminishes or extin- | ||||||
| standing; Main burner |
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| guishes, especially when main burner ignites. Monitor appliance supply working | ||||
| is in 'OFF' position. |
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| pressure. | ||||
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| - | check if supply piping size is to code. Correct all undersized piping. | |||
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| Flames are consist- | Unit is | - | check pressure readings: | |||||
| ently too large or too |
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| Inlet pressure can be checked by turning screw (A) | ||||
| small. Carboning oc- |
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| turns and then placing pressure gauge tubing over the test point. Gauge should | ||||
| curs. |
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| read 7" (minimum 4.5") water column for natural gas or 13" (11" minimum) water | ||||
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| column for propane. Check that main burner is operating on "HI". | ||||
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| Outlet pressure can be checked the same as above using screw (B). Gauge | ||||
should read 3.5" water column for natural gas or 10" water column for propane. | |
Check that main burner is operating on "HI". |
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AFTER TAKING PRESSURE READINGS, BE SURE TO TURN SCREWS CLOCK- | |
WISE FIRMLY TO RESEAL. DO NOT OVERTORQUE. |
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Leak test with a soap and water solution. |
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