Rheem 90 won't ignite


Old 10-29-05, 10:00 AM
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Rheem 90 won't ignite

I have a Rheem 90 propane furnace that's not heating. Bought house last year, and I thought I could see pilot light last yr. Not visible through small window, but once opened, it's unclear to me if I should just try to light it, (location not obvious to me) or whether other issues I should be concerned with. Propane tank is full, and all breakers fine. The AC portion of this unit works fine. Have scheduled tune up service, just wondered if something simple I should try before they come next week.
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Old 10-29-05, 09:52 PM
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do NOT try to manual light the furnace.. Since you are getting service, let them take care of it.
Old 11-03-05, 04:50 PM
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Rheem 90+ has no pilot light.

What does it do when you try to turn it on?

There are LEDs on the control board thatshould flash a code if something is wrong.

How many times does it flash?

The sequence of opperations should go like this:

Call for heat
Combustion fan starts, and runs for a bit.
Gas valve opens, and spark ignitor starts sparking.
Main burner lights and flame is sensed.
30 seconds later blower starts.

How far does it get?

And you stated that your tank was full, but did you make sure it was turned on? and there should be a shut of at the furnace to, don't forget it.

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