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My mothers furnace is only three years old and now the furnace heats up and only blows cool air.

It is a gas furnace model # DGAA077BATA
All it says on the front of the furnace is Red T Products.

My mother says the furnace acts like it should yet no hot air. Any ideas?

Hi,

Does the burner actually light ? If so, could be a blockage in the burner orifice (spider and/or web) for instance.


Could be gas valve problem also.


You could check the orifice, but otherwise will need a Tech to diagnose it.


Thanks,
Robert

ya burner lights unit even has the code error but light stays solid green to say no problems found but with what i see everything is how it should be working just 0 hot air coming out with everything working fine

Check that orifice.


Thanks,
Robert