firstbase
Guru
- Joined
- Nov 6, 2016
- Messages
- 1,644
- Location
- United States
- Vessel Name
- Black Eyed Susan
- Vessel Make
- Grand Banks 42' Classic
I have three Marineair units onboard. I believe 2 12,000btu's, salon and stateroom, and a 9,000 btu in the v-berth. To the best of my knowledge all three are original to the 1987 boat. I had them looked at a few months ago and was told:
1) The 9,000 up forward, putting out 1/2 cooled air, is "losing pressure between sides". Nothing they could do but they refilled coolant and it was better for a while.
2) The 12K in the salon had a slow leak out the valve. "The valve is located in the back and we can't service or replace it, have to pull the unit and you might as well get a new one as it is so old." refilled coolant, worked better.
3. The stateroom unit still works well on AC. Was told that pressure was fine and it was cooling normally. Issue with it is that when I do anything funky with the controls or electrical onboard while it is running it flips its main breaker. Not good.
All 3 have no working heat function. I believed it to be due to lack of use and the valves were stuck. I tried exercising them, tapping them, on/off, etc. and got to where I could hear the valve flipping but no real heat.
Sorry for the long details, my question is whether or not these old units can be pulled and rebuilt with any success or are they simply old and need replacement. Do they rebuild AC units or am I just wasting money trying it?
Thanks for comments.
1) The 9,000 up forward, putting out 1/2 cooled air, is "losing pressure between sides". Nothing they could do but they refilled coolant and it was better for a while.
2) The 12K in the salon had a slow leak out the valve. "The valve is located in the back and we can't service or replace it, have to pull the unit and you might as well get a new one as it is so old." refilled coolant, worked better.
3. The stateroom unit still works well on AC. Was told that pressure was fine and it was cooling normally. Issue with it is that when I do anything funky with the controls or electrical onboard while it is running it flips its main breaker. Not good.
All 3 have no working heat function. I believed it to be due to lack of use and the valves were stuck. I tried exercising them, tapping them, on/off, etc. and got to where I could hear the valve flipping but no real heat.
Sorry for the long details, my question is whether or not these old units can be pulled and rebuilt with any success or are they simply old and need replacement. Do they rebuild AC units or am I just wasting money trying it?
Thanks for comments.
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