E4 code on Heatpump

mikeandconnie

Well-known member
I had an e-4 code on my heat pump the last few months. I replace the temperature sensor and it's working fine now, no code. I thought I would post this in case somebody else had this problem down the road.
 

mikeandconnie

Well-known member
It was mounted inside the AC unit underneath the control box. the wire was connected to the circuit board and the sensor was screwed into the casing.IMG_20181025_165558.jpg
 
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