Explained thoroughly problem and potential remedies made repairs and all appears to be working properly.
Completed Walk-in Freezer repairs & defrost controls system testing. R404a refrigerant low, balance refrigerant charge & add internal refrigerant leak sealers & performance enhancement lubrication for improved performance.
Completed repairs on walk in frezer
Walk In Freezer not keep food frozen. Kitchen walkin cooler using R404A is not cooling properly. Repaired, freezer now down to 5 degrees-Brrr
Repair control system on Carrier air handler for the Auxiliary heat strips to assist heat pump operation and for emergency heat functionality