It may be that the fan relay is sticking ON at the end of the heat cycle. However they don't usually let loose and stop either when that happens. Have to tap on the relay on the board when that happens and see if it stops.
Tell your tech there is a set of error codes in fine print along the edge of the wiring diagram on the inside of the lower door. There usualy is 3 led lights and it can give a error code. Flashing amber ( slow ) usually is a heartbeat code meaning you have normal power. Fast I don't know w/o seeing the codes.
Tell your tech there is a set of error codes in fine print along the edge of the wiring diagram on the inside of the lower door. There usualy is 3 led lights and it can give a error code. Flashing amber ( slow ) usually is a heartbeat code meaning you have normal power. Fast I don't know w/o seeing the codes.