Mitsubishi Electric air conditioner model : PUHY-200TEM-A

[minks]

Hello everyone,

I have changed the boards (IPM, Main, Inverter) for the above ac unit. Checked the compressor - its ok. But as soon as the outdoor unit runs for only a couple of seconds, the fan motor for the radiator panel comes on. What could be the problem??
Thank you.

[minks]

When the fan motor for the radiator panel comes on, fault code 4250 also appears. Why?, when the IPM board has already been replaced?

[install monkey]

http://www.refrigeration-engineer.co...rror-code-4250
check neutral, fuses- and ensure the compressor isnt grounded- if so new compressor and ipm, also check all connections on pcb

[minks]

thanks for the reply.....