Furnace help - Page 2 - Fiberglass RV


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Old 04-16-2016, 11:02 AM   #15
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Name: bob
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Can you hear the igniter even if propane is low? If you don't hear the igniter, would it likely be an electrical problem?

Cindy
There will be spark even if there is no propane ( I think, pretty sure). It may be hard to hear, is there an inspection window?
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Old 04-16-2016, 11:10 AM   #16
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Name: Jack L
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Didn't work. Can't get the fittings off. Taking them to Tractor Supply.

Luckily, the weather here is not yet impossible.

Cindy
"Can't get the fittings off" ? Remember propane fittings are right turning to loosen. The old saying "righty tighty, lefty loosey" is wrong when working with flammable gas where it connects to the tank. It sure sounds like you could have a fuel issue here.
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Old 04-16-2016, 11:16 AM   #17
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Didn't work. Can't get the fittings off. Taking them to Tractor Supply.

Luckily, the weather here is not yet impossible.

Cindy
Do not know how old this unit is but if it is older and has original fittings they would be left hand thread i.e. turn counter clockwise to loosen .
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Old 04-16-2016, 11:24 AM   #18
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We assume that the KOA lady who fills propane knows the right way to loosen the fittings. My guess is the age of the tanks is a factor here. Who knows when last they were filled? The RV place did not do it.

I found a hint in a Bigfoot truck manual that matches our furnace issue. When Kevin gets back, I am sharing with him.

Cindy
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Old 04-17-2016, 06:56 PM   #19
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Name: Joe
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Not all furnaces use a sparker that you can hear. Suburban furnaces like on our Casita have a glow thingy that does not make any noise.
On our furnace when the thermostat calls for heat the fan comes on. The air moving causes a "sail switch" to activate and shortly you'll hear the gas solenoid click once.
Now the fan runs on 12 volts so if your 12 volts are low or the motor is not turning fast enough the sail switch will not activate that turns on the gas.

On your propane tanks, do you have a green plastic know knob or the older brass fitting?

Don't assume the lady that fills the propane tanks knows what they are doing!!

You do know what "assume" means I hope. Anyway the threads are backwards on the older tanks and you'll need a decent wrench to remove them.
The newer ones with the big green knobs have right handed threads (normal) that can be taken off by hand but you may need a glove.

Joe
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