Arrived to perform peace of mind service on unit less than one year-old. Checked cycled and tested all heating operations. Check reversing valve, defrost, and auxiliary heat function. Cleared drain line, tested all motors and capacitors. All motors and capacitors are within parameters. Refrigerate charge is correct. Tested airflow, and complete visual inspection of all components and coils. 24 x 24 filter inside the home looks like it could be replaced. All operations are a OK at this time. Thank you for trusting Dawsons with your heating and air needs.
Customer states unit will not run in heat and only blows cold/cool air. Unit is a 10 year-old heat pump package unit with original ductwork. Found the system on a low pressure lockout. Initial visual inspection found drain line trap below grade with several indications. The unit is not draining properly. 1 to 2 inch waterline inside the unit confirms this. After hooking up gauges,Schrader valve core was leaking and will not seal/close. Recycled power and started unit in heating mode. Heating operations appear correct. Auxiliary heat and primary heating heat pump function all appear to be functional. The system is a 3 ton heat pump with approximately one and a half to 2 tons of ductwork. The return caller attached to this unit is a 14 inch duct and should be at least a 16 inch. It’s possible the system is oversized or the ductwork is considerably undersized. The compressor is drawing excessive amperage on startup. Manufacturers writing is 77 A and the compressor is drawing 95.6 A. Str
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