Mitsubishi Mr. Slim MXZ30TN Air Conditioner "type p8" Questions

...p8 is coming in the remot unit on after 3 mintus i check the air conditioner fcu type mitsubishi brand unit is on after 3 mintuse error is coming p8 error p8 is coming in the remot unit after 3 ...

p8 eroor code Mitsubishi cassette type in door unit (PLH-2.5KKB) out door unit (PUH-2.5NKA) 1) Compressor is change but new compressor same capacity, but not same model compressor. 2) unit Runing Amp.

...P8 error code and is blowing only hot air even temperature is set at 16 degrees. What might be the cause and how to rectify it. go google and type in--Mitsubishi air conditioner fault code p 8-- and ...