Mitsu SUZ-KA71VA

[paulg88]

Hi all,
Spent a few minutes looking at the above condenser and its indoor(PLA-RP71BA) yesterday. The indoor was struggling to reach temperature. The outdoor was running but the compressor would only run for approx 2 mins, at 110 psi, drawing 3.5 amps and then cut out. The condenser fan stayed running and after another 2 mins or so the compressor would come back on but only for 2 mins or so again. Also, in test cooling mode, the compressor will only run at its slowest speed, drawing 2 amps? I've checked the voltage on the compressor leads in test mode and measured equal voltage, to rule out an imbalance. The unit is rated for 12 amps, so over current isn't an issue. Anybody have any other ideas before I go back to site on Tuesday?
Cheers,
Paul

[install monkey]

http://www.mediafire.com/view/?d0ew4k6wngyudb1
check indoor for fault code,check for any condensate pumps with hi limit wired into control signal

[paulg88]

No fault showing and no pump connected. The unit stays running, even the condenser fan motor, it's just the compressor alone that's dropping in and out...

[install monkey]

test power on the compressor terminals to see if you got power there when it stops- could be weak internal klixon

[install monkey]

condenser fan will run for a minute after thermo off signal, also starts about 20 seconds before comp starts