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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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My name is ***** *****. I have a Rheem II gas furnace and

Customer Question

Customer: My name is ***** *****. I have a Rheem II gas furnace and it's not working. Checked the breakers. Took off both panels. Now see that none of the lights are on on the circuit board. Like it's totally dead.???
JA: Thanks. Can you give me any more details about your issue?
Customer: 10 year old Rheem II gas furnace. Has been working just fine. Just noticed house was getting cold. Went down to check on pilot light, so removed top panel. There were no instructions. Only an off/on switch. Took off bottom panel and saw lights on circuit board but none were lit. Went to box outside to see if breaker has been flipped. It had not but I went ahead and cycled it. Went back to furnace and lights on that circuit board are still not on. It seems to have been off for a while as its cool to the touch.
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Submitted: 11 months ago.
Category: HVAC
Expert:  Phil replied 11 months ago.

Hello, there is a door switch on the blower service panel that you must hold in manually when looking for error codes on the printed circuit board.

Next please attach a well focused, close up photo of the wiring diagram glued inside the service panel, the picture needs to be taken from straight on, in very good light.

You can use the paper clip- icon at the right end of the tool bar at the top of this dialog box to attach it here.,Include a picture of the thermostat wire connections to the printed circuit board in the same area.

If you have an error code showing, tell me what the code read out is on the wiring diagram or a sticker next to the diagram please.

If there is no paper clip-icon, look for the '+attachfiles'link at left of your send button.

I can mark it up with trouble shooting instructions.

We can go from there.

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