Probably needs more return

[GJ-HVAC/R]

Went on a no heat call today on a 7 month old furnace. Limit switch stuck open. 80000 btu furnace with 10 inch round pipe for return. Then where it goes through the wall, part of the pipe is blocked. 10 in round to 14x14 grill.

[OldSchoolMech]

Atleast They didn't cut a hole in the blower door to get more Air.
I don't get the whole 1 Return thing Over thier

[jeffinok]

more return is an understatement. poor blower motor is starving

[54regcab]

Poor returns aren't uncommon, but a single 10" return is ridiculous. If you got the job of fixing it, what did you end up doing?

[Tirasdrakkar]

more return is an understatement. poor blower motor is starving

Poor blower motor? I think the heat exchanger is taking the brunt of the abuse. I wonder if the startup guy did a temp rise?

[54regcab]

Poor blower motor? I think the heat exchanger is taking the brunt of the abuse. I wonder if the startup guy did a temp rise?

I'd be surprised it if wasn't kicking off on high limit.

[GJ-HVAC/R]

Poor blower motor? I think the heat exchanger is taking the brunt of the abuse. I wonder if the startup guy did a temp rise?

I would bet that he didnt

[GJ-HVAC/R]

Poor returns aren't uncommon, but a single 10" return is ridiculous. If you got the job of fixing it, what did you end up doing?

Our installers are going on wednesday to add a much larger return :beer: