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Old 05-10-2008, 10:26 AM   #16
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Carrier Furnace: Gas Heating Lockout


You all just saved me from making a service call. My Carrier Weather Maker 8000 has not been functioning for the past week in the furnace function. Not an immediate problem as nights have not been too cold, but I was not looking forward to having it serviced and repaired financially.

But I finally did a search and found this thread and some other sites. I was concerned that I too might have a bad circuit board. Hmm.. more reading at other sites and the information sheet on the furnace made me realize that I needed to try the following before doing anything else -
- set thermostat to lowest setting
- power off to the furnace
- open the furnace
- clean the dust buildup that I felt comfortable reaching
- check connections
- close the furnace back up
- wait (one site said 3 hours - I waited one hour)
- set thermostat to desired temp
- listen to the furnace start a heating cycle (if that doesn't happen, you need to recheck your LED for the error code)

Once again, thank you to inspiring me to try a few things first before calling for service!
Michael

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Old 06-11-2008, 03:34 PM   #17
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Carrier Furnace: Gas Heating Lockout


I has a similar problem with the Control Board on my 373LAV Model Unit.

A technician came out and qouted me over $550 to replace the CB plus more if the motor was bad.

I was able to have a neighbors HVAC person verify the unit needed the CB plus 2 lbs of freon. This technician actaully called me with the news that his sources were overcharging for the board and that if I could locate it for cheaper, he would install it. I took him up on the challenge/offer and locate dthe board from an HVAC person in another state (not as hot as Texas) and was able to get the replacement get for a decent price (less than $100). I called the technician back out and he took about an hour replacing the CB and my unit work flawlessly now.

Total cost of first trip w/ 2lbs of Freon $100.

Installation ($100 plus part $60).

Total repair was $260 vs. initial $525 estimate.

It pays to consult the professionals, but to also get a 2nd opinion.

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