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I HAVE AN OLDER 80000 BTU WESTINGHOUSE OVERHEAD GAS FURNACE IN MY GARAGE. LAST WINTER I HAD A PARTY AND HAD THE FURNACE ON, BUT LATER IN THE NIGHT I NOTICED THE CIRCULATING FAN WAS KICKING ON AND OFF WAY TOO MUCH. THE BURNER WAS LIT BUT THE FAN WOULD RUN ABOUT 10 SECONDS AND SHUT OFF FOR 20 SECONDS AND KEEP REPEATING.I'M GUESSING ONE OF THE LIMIT SWITCHES IS BAD BUT I DON'T KNOW WHICH ONE OR WHERE IT WOULD BE.HELP WOULD BE GREAT!

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6ya6ya
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Posted on Jan 02, 2017

JetJedi221
  • 25 Answers

SOURCE: The furnace burners won't stay lit

Could be a couple things. First and easiest is to check your intake combustion air supply. If it is blocked by anything or just not enough flow, it will put out the flame. Next would be the flame sensor, usually a temperature probe near the flame front. If it's not reading an increase in temp within a pre-programmed time, it will kill the flame. It can be checked with a multimeter.

Good luck!

Posted on Jan 25, 2008

  • 2 Answers

SOURCE: Rheem gas furnace pilot lights, but no burners or fan

If the burners do not fully ignite, the sensor will shut the furnace down. The lack of sufficient burner flame is a gas valve or gas pressure problem within the valve.
Replacing the gas valve with the original one may get you going. I surely suggest a professional service company for safety reasons and a thorough inspection. A 20 year old furnace is past it's normal life span.

Posted on Jan 06, 2009

  • 1 Answer

SOURCE: Furnace comes on for 1 min then kicks off, repeats this cycle

MY FURNACE WOULD RUN FOR ABOUT TWO MINUTES , THEN THE BURNER WOULD GO OUT BUT THE BLOWER WOULD CONTINUE TO RUN , LONG ENOUGH TO COOL THE FAN LIMIT SWITCH DOWN , THEN IT WOULD START THE PROCESS ALL OVER. WHAT FIXED MY PROBLEM WAS THE SECONDARY HEAT EXCHANGER THAT IS LOCATED JUST ABOVE MY BLOWER MOTOR WAS PLUGGED WITH DIRT , WHICH RESTRICTED THE AIR FLOW , CAUSING THE FAN LIMIT SWITCH TO REACH 200 DEGREES AND SHUT THE BURNER DOWN . YOU'LL HAVE TO TAKE THE BLOWER MOTOR OUT TO GET TO IT , BUT MY FURNACE IS RUNNING PERFECT NOW

Posted on Jan 11, 2010

  • 1 Answer

SOURCE: 92000 btu Goodman furnace in

Furnace not big enough or poor insulation

Posted on Dec 09, 2010

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