I performed a 2 system heating maintenance on 2019 heat pump equipment. I checked amps, capacitors, filters, electrical, cleanliness, and safeties. Customer spoke about the smaller heat pump icing over. I investigated and found that the defrost sensor is reading 8kohms and that equates to 85 degrees. This is causing defrost to not occur. I noticed that only 2 of the 4 heat strips are operating in the bigger unit. I verified power to the heating strips and confirmed that 2 of them are broken. The smaller heat pump’s fan motor is amping right at maximum rated amps. This is a sign that the motor is likely to fail soon. I got approval for the defrost sensor and heating kit. I ordered them and they are available for pick up in Allen at shearer supply.
