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gone_fishing 11-19-2008 07:06 PM

Advice when replacing furnace
 
Got some bad news that my gas furnace needs to be replaced. We've had a repeated problem with a safety switch shutting down the burners. HVAC guy said he can test it but if it fails, as he expects, he would be required to shut down the system immediately. I am meeting with him this weekend to discuss options. What should I ask and look for?

We would get our furnace and outside AC unit replaced in one shot since the AC is very old and in terrible shape.

Thanks!
Kevin

kennzz05 11-19-2008 07:14 PM

Quote:

Originally Posted by gone_fishing (Post 187379)
Got some bad news that my gas furnace needs to be replaced. We've had a repeated problem with a safety switch shutting down the burners. HVAC guy said he can test it but if it fails, as he expects, he would be required to shut down the system immediately. I am meeting with him this weekend to discuss options. What should I ask and look for?

We would get our furnace and outside AC unit replaced in one shot since the AC is very old and in terrible shape.

Thanks!
Kevin

name and location of "safety switch"? hi limit? or flame rollout? age of unit? and what brand and model #

beenthere 11-19-2008 10:44 PM

The safety could be tripping because of a bad heat exchanger.
Or, because of something simpler.
Might want a second opinion.

gone_fishing 11-19-2008 11:14 PM

I am not currently home...He came over and met with my wife. He said the heat exchanger is bad. The code was "rollout switch open". It's a York that is about 12-17 years old. Don't know the exact age since we are 2nd owners. I plan on having another company take a look.

beenthere 11-19-2008 11:18 PM

It could be a bad HXer, or something else.

Isn't is strange how its safe to operate if he doesn't check it.

kennzz05 11-20-2008 12:34 AM

Quote:

Originally Posted by beenthere (Post 187540)
It could be a bad HXer, or something else.

Isn't is strange how its safe to operate if he doesn't check it.

i think id find an all nite hardware store or walmart and buy a carbon monoxide detector so you know if your getting poisoned slowly

gone_fishing 11-22-2008 11:39 PM

We already had one in the house. I moved it to just outside of the furnace.


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