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I have an itt grinnelloverhead garage heater the pilot goes out gas shuts off the fan comes on and runs cotinuosly until i shut off the power . the instruction plate says that if the pilot extinguises then i need to replace a econ safety switch in the fan cage. can u help me ? Leonard

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Posted on Jan 02, 2017

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SOURCE: Williams Model 435FXR Serial GO222436 Forced air pilot keeps going out

BY THERMISTOR, ARE YOU MEANING THERMOCOUPLE, I.E. WHAT YOUR PILOT LIGHT IS HEATING? IF SO, COULD BE WEAK AND NOT GENERATING ENOUGH VOLTAGE TO STAY OPEN, SHOULD BE BETWEEN 10-25 MILLIVOLTS DC, WHICH CAN BE TESTED AT THE INTERRUPTER LEADS. YOU CAN ALSO BYPASS THE LIMIT DISC TEMPORARILY TO SEE IF THE UNIT STAYS LIT, REPLACE IT IF THE UNIT RUNS.

Posted on Jan 29, 2008

  • 1 Answer

SOURCE: How to reset Tilt Switch in LASKO Ceramic Heater 5540?

I don't have manual, it's a borrowed one. Several days later, I pushed the botton at the bottom several times, looks it solved my problem.

Posted on Feb 15, 2009

  • 1 Answer

SOURCE: pro comm natural gas heater, pilot keeps going out

The problem is likely to be either the thermal-couple (easily replaced) or a clogged gas orrifice. The clogged orrifice would require a bit more know-how then the thermal-couple and with gas appliances it would be best to hire someone who knows what they are doing.

Posted on Mar 21, 2009

  • 9 Answers

SOURCE: Heater Burner ignites but main blower motor will not turn on.

it sound like the blower motor may be seizing up. try spining the blade by hand to see if it feels free or not. the motor could be trying to turn but can then tripping itself out on overload. (most motors have built in safety overloads which will trip during an overcurrant event. aka too many amps.) you may have to replace blower motor

Posted on Mar 22, 2009

  • 587 Answers

SOURCE: My honeywell gas suspended garage heater will not

The pilot light has to be lit before gas valve will operate. That's a safety feature so the valve won't open and fill the garage with gas and possibly cause an explosion or fire. If you have a standing pilot and can't get pilot to stay lit, it's usually the thermocouple and it will need to be replaced. Once the pilot is lit, the gas valve comes on and heats the combustion chamber up to approx. 100° to 125° a thermostat controlled fan switch will close and bring the blower on.

Posted on Sep 10, 2009

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