Cause

(If code is intermittent or unit is cooling correctly): Main PCB or Temperature Sensor defect.

Solution

Try Reset.

If Reset does not work replace Main PCB and Temp Sensor(s).

Cause

Sealed System Leak.

Solution

Look for leaking sealed system component.

Look for oil on tubing.

Replace leaking part and repair sealed system.

***If unit contains R32 Refrigerant and is found to have a Sealed System issue then RA will need to be issued.

Call TCC at 800-847-7597 with readings to properly troubleshoot***