Fault Code On SMX Air Conditioner
Has anyone run into the PS/HI and PS/LO fault codes on their air conditioners. I have a 2002 380DA that has the SMX Cruisair system. Over the past week, when the heat was running, the HI/PS code would flash, and when the A/C would run the PS/LO code would flash. I have a seperate systems and both push water while the systems are running. The salon system is the only one that is flashing a code and shutting down. It seems to push good water through, although it may not be as much as the master cabin system. I have not had time to look at the impeller and strainer yet or to check for any blockages. Was hoping to get some quick feedback if anyone has been through this before.
Answer:
My manuals are on the boat so you should verify this in your owners packet, but the PS-HI and PS-LO indicate your compressor head pressures are high or low. Heat can cause it, but since you get different indications on heat vs. air settings, you are probably dealing with low freon in the compressor. The cooling water pump is not normally servicable and it is a magnetic type impeller. As long as a good water stream is coming out of the boat, the pump is more than likely doing its thing. There is only one pump and one relay to turn it on and it is located in the rear unit.....both units signal the relay to run the pump.