Tech found 2015 model Trane split system (last 4 of outdoor unit R34F) not cooling due to a failed 7.5uf outdoor fan capacitor. Tech replaced it for testing and found outdoor fan back amping correctly and system cooling correctly. TXV was replaced and leak repaired on this system in September last year. System is back cooling normally. Tech found 2014 model Trane split system (last 4 of outdoor unit RG4F) not cooling due to being nearly devoid of 9 lbs of R410a. Had about 80 psi of standing pressure, but low pressure switch was stuck open. High pressure switch was closed. Tech bypassed low pressure switch to get system to start up for testing, but compressor made a grinding sound and did not start. Capacitor is within specs. Tech homed compressor, but it still will not start. Tech diagnosed failed low pressure switch, failed compressor, major refrigerant leak or leaks in system holding 10 lbs R410a. Outdoor unit is highly corroded. Tech recommends system replacement. Lanie approved c
Resolution unit serial# 16272YG22V tech inspect unit coil good blower good blower motor amps 2.34 clean drain line. Unit operating correctly at this time. Resolution unit serial# 16051L1B2V tech inspect unit blower good coil good blower motor amps 2.45 clean drain line. Unit operating correctly at this time. Resolution unit serial# 15384MR34F tech inspect coil good compressor amps 8.90 fan motor amps 1.26 capacitor good. Unit operating correctly at this time. Resolution unit serial# 14432PRG4F tech inspect unit coil good compressor amps 9.80 fan motor amps 1.14 capacitor good. Unit operating correctly at this time.
added ac renew
found tstat set to EmHeat. switched to normal heat operation. unable to contact regarding recommendations. Recommended adding ac renew to increase efficient and reduce compressor noise performed full service per ESA
Diagnosed Trane split system heat pump.
Tech performed diagnostic on Trane split system.
Performed tune up
Tech replaced bad compressor.