Tip & How-To about Heating & Cooling
Most gas furneses have a red light on circuit board wich is located on intake. turn heater off then have someone turn it back on while you watch the circuit board. count the # of times the red light flashes before it pauses. it will flash in a cycle. for instance it flashe 3 times then pauses for 5 secounds then flashes 3 times again on and on. look on the back of the panel cover,their will be a diagram, in the diagram their will be dianostic report that will include what that # of flashing red light and what it means. for examle 3 flashing red lights ps stuck open. that means pressure switch stuck open. replace the part and your back up and running.
Posted by kellys4640 on
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