Alaskan Sea-Duction
Guru
- Joined
- Jul 6, 2012
- Messages
- 8,061
- Location
- USA
- Vessel Name
- Alaskan Sea-Duction
- Vessel Make
- 1988 M/Y Camargue YachtFisher
On my boat I have two Marine Air reverse air A/C-Heating units. I guess they are now Dometic. One unit is for the front, the other is for the aft.
The compressors are located in the engine room. Then the fans and radiators are located in a cabinet in front and back.
The rear unit thermostat knob was stuck. I installed a new one. Turned the unit one and only cool air comes out. Move the knob to cold and I get freezing air out. Turn the knob to heat and you can hear the switch turn and after a few minutes no cold air, just slightly warm. I can put my hand on the side of the radiator and it warms up a little when the knob is on heat and cold when turned to cold. (Front unit runs good with hot and cold air.)
I go below with both units on. The unit for the front, the compressor is cold to the touch. The compressor for the rear is hot to the touch. When the wife turns off the rear unit, it shuts down with a relieving pressure sound.
Something is going on with the compressor.
I have included a few pics. Any ideas?
The compressors are located in the engine room. Then the fans and radiators are located in a cabinet in front and back.
The rear unit thermostat knob was stuck. I installed a new one. Turned the unit one and only cool air comes out. Move the knob to cold and I get freezing air out. Turn the knob to heat and you can hear the switch turn and after a few minutes no cold air, just slightly warm. I can put my hand on the side of the radiator and it warms up a little when the knob is on heat and cold when turned to cold. (Front unit runs good with hot and cold air.)
I go below with both units on. The unit for the front, the compressor is cold to the touch. The compressor for the rear is hot to the touch. When the wife turns off the rear unit, it shuts down with a relieving pressure sound.
Something is going on with the compressor.
I have included a few pics. Any ideas?