Pilot light is working fine but when we raise the termostate the pilot light dims to nothing and burners won't light. Is there a way to half split the problem to tell if it is the valve or the thermostat or the high temp sensor?
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Hi there. The thermostat will only shut down burner flame but not pilot flame. Try tightening all wiring connections. By using an ohm meter, check the continuity across the hi limit terminals when the pilot goes off, your hi limit may be tripping prematurely causing pilot flame to shut down. Regards.
The high limit switch has nothing to do with the pilot light, but will shut down the main burners. It the pilot light will not stay lit, then it is most likely the thermocouple. If the pilot light will not light at all, then gas is not reaching the pilot. Most likely, the pilot light tube is clogged with grease. When you push on the button to light the pilot, you are overriding all safeties inside the unit and sending gas to the pilot. Also make sure that the unit itself is getting gas. New regulations require a shut off within the hose that feeds the appliance which will shut off due to a surge of gas through the hose. To reset it, disconnect/reconnect the hose at the intake end and when you turn the gas back on, turn it on slowly.
If your pilot is a manual ignition model, make sure that the thermopile is clean (free of soot), it is the cylindrical piece of metal behind the pilot assembly which is heated by the pilot flame, a very small amount of voltage is generated by it to open pilot and main burner valves of gas valve.
First, never light when the pot is empty, you can fill with water if you have no oil. Open the door, check the thermostat and make sure it is turned off.(The burners will light if thermostat is on) Behind the thermostat you will see the gas valve. Turn knob to off, then to pilot. There is a notch at the pilot position. Now look up in the middle behind the burners and you will see the pilot assembly. Push in on the knob on the gas valve while you hold a long lighter close to the pilot assembly. Once the pilot lights keep holding the pilot knob in for 20 seconds. Now let off the pilot knob. Pilot should stay burning. Now turn the gas valve from pilot to on. Now turn the thermostat to desired temp and the burners will fire off and start heating.
Set t/stat to 250 degrees. If it does not shut off after about 5 minutes, replace t/stat.If shuts off, must be calibrated Pilot may be dirty, flame weak. If flame strong, replace thermopile(pilot generator). If weak, must remove and clean pilot orifice inside pilot.
Sounds like the burners are dirty remove burners and run under cold water and replace propane gas burns dirty and might have blocked up burners creating a pop at the burners this will then blow out pilot light if this does not work give me a shout