My Jayco van has a Harrier lite air conditioning system. I powered it up today. It ran for a few minutes then gave a P5 error code. I connected the van to another 240 volt supply and it did the same thing.
the filters were clean, I ran the fan at high speed without any issues. I then lowered the temp to around 21. It ran for a while, cool air came out then the P5 alarm returned???