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'73 furnace pilot won't light Jump to page : 1 Now viewing page 1 [25 messages per page] | View previous thread :: View next thread |
General Discussion -> Mechanic's Corner | Message format |
Thomas C. Mencher |
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Contributor Location: New York City | The pilot light on my '73 fmc won't activate to allow the furnace to start. Any advice? I have tried lighting it manually with no success. Also the manual shows a pilot gas turn-on switch which I can't locate. Any suggestions? | ||
LCAC_Man |
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Elite Veteran Location: Oceanside, CA | sure your thermostat has power and is working? | ||
Thomas C. Mencher |
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Contributor Location: New York City | Not sure if the pilot has power. But shouldn't it open manually with a lighter? Another question: the dash indicatoholding tank indicators are not working. Any suggestions? | ||
B. Sitton |
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Extreme Veteran Location: Ignacio Colorado | Does the heater fan come on? It has to spin fast enough to trip a switch that turns on the gas. If the battery is low it won’t trip the switch. I’ve read that well water won’t trigger the tank indicator. Chlorinated water does. Just in case you have well water. Bill | ||
Thomas C. Mencher |
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Contributor Location: New York City | Not sure if the pilot has power. But shouldn't it open manually with a lighter? Another question: the dash indicatoholding tank indicators are not working. Any suggestions? Thank you very much for your help. | ||
LCAC_Man |
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Elite Veteran Location: Oceanside, CA | like Bill said, if when you turn the thermostat up the fan motor doesn't come on then you'll never get the gas switch to turn on...mine doesn't have a "pilot light" it has an electric igniter but it was a replacement unit in the early 1990's. | ||
Thomas C. Mencher |
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Contributor Location: New York City | Thanks very much for your answer. I am going to check the fan. | ||
Thomas C. Mencher |
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Contributor Location: New York City | So, in order for the gas to turn on the the thermostat has to be turned up and the fan has to be running?8 | ||
LCAC_Man |
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Elite Veteran Location: Oceanside, CA | yes | ||
Thomas C. Mencher |
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Contributor Location: New York City | Excellent!! Winter is on its way here in NYC. I am going to use your advice and check. Let's hope for the best.Thanks so much. | ||
B. Sitton |
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Extreme Veteran Location: Ignacio Colorado | When you turn the thermostat up above ambient temp the fan turns on. It has to blow enough air to trip the fuel cutoff and send gas to the burner. There is also an over temp gas cut out switch that might be bad but the fan would still blow. This is how the factory heater in #902 works. No pilot light but an igniter and gas cut off switch. Bill | ||
Thomas C. Mencher |
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Contributor Location: New York City | Thanks so much, Bill. I can't wait to get up to the Bronx and try your suggestions. You are very knowedgeable. | ||
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