Gas and Oil Home Heating Furnaces - York 80 furnace problems with blower

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Ronm_tech
11-02-09, 07:30 AM
Hello I have a York 80 furnance with central air. My problem is intermitent. The last few days in the morning the blower fan will not shut off after the desired temperature has been achieved. I can hear the t-stat clicking to turn the burners off but the blower will run continously with the burners off causing the house to cool back down the only way to shut the blower down is to shut the power off at the furnace? I have a White Rodgers emerson electric
MOD# 50A50-241 controller with the Dip switches to set the heat delay to turn fan off. 30 60 90 120 ...Can it be a bad controller ?

Grady
11-02-09, 03:03 PM
It's possible the control is bad. The furnace could also be getting too hot & opening the limit. With some limits, even after the furnace cools, the power has to be shut off to reset them.
GRIMKNOTME
11-02-09, 05:49 PM
It's possible the control is bad. The furnace could also be getting too hot & opening the limit. With some limits, even after the furnace cools, the power has to be shut off to reset them.

Agreed or you are sucking a lot of cold air tru return back into house , or stuck fan relay , or ?????................