coleman furnace blowing cold air.

[nellymal1]

Hi
my parents have a newer model Coleman furnace. when they turn the thermostat on heat- cold air blows. the gas and elect gentleman said the pressure switch was not closing properly; we replaced it. furnace still comes on blows cold air and switches itself off..... any ideas?

[Yanita]

Hi,

I am going to move this post to the HVAC forums, (Heating, Venting & AC.)

Please read the posting instructions in that forum and include the info in your post. The tech will be able to answer you much sooner.

Thanks,
Yanita

[Mark]

Yep, we need to know the model number of the furnace and a more step by step sequence of how your furnace is acting.

Mark