I have a heat pumpthat was freezing the evap on ac. I added r22 and the pressures rose slightly on both high and lo sides but superheat stayed high. What i fund on the reversing valve was the temp was going down on the high side passing through and going up on the low side passing trough. about 15 degrees. I was sure it was a bleeding reversing valve. I removed the rev valve and made he unit a straight ac unit with resistance heat. The same problem persisted. Next I removed the filter/drier cap tube assembly and installed a new one. problem solved.
My question to the pros is WILL A RESTRICTION PLAY HAVOC WITH A REV VALVE OR DID I HAVE MULTIPLE ISSUES WITH THIS UNIT. Thankyou for the help