timjet
Guru
- Joined
- Apr 9, 2009
- Messages
- 1,920
I seem to be having my share of problems with my air conditioning units.
I replaced the pump motor last month. After a day cruise last week, we hooked up electrical and the rear AC compressor would not come on, the fan worked. The digital control panel has a light that illuminates when the compressor is on. The light was on, but not the compressor, nor was the new pump motor. I turned on the fwd ac unit and it worked fine including the pump motor.
I located the computer module for the aft ac unit and observed several electrical terminals including 4 for the compressor and pump motor. I put a voltage meter on the input terminals and got 120 v but 0 volts on the compressor and pump motor.
I removed the circuit board from the boat after talking to the manufacturers tech. After describing the problem and the tests that I did, he said the board is most likely the problem. Upon removal I noticed a burnt spot on the underside of the circuit board where a relay is soldered to the board.
The manufacturers tech said a new board is $550. Impossible I said, there's not that much to it. Yes, I know, but they don't make that board anymore and you have to upgrade to a new system which includes a new digital control panel was his reply. But my current control panel is just fine I said. Tough luck he said.
After much searching I found the company that makes the circuit board. It was not easy, a small company in New Jersey. I called and in talking to the tech he confirmed that I nailed the problem. So I asked, can you fix it? Yes he said, for $200.
Problem solved. Cool air next week, I hope.
I shudder to think how much this would have cost if I had called a local marine AC repair place.
I replaced the pump motor last month. After a day cruise last week, we hooked up electrical and the rear AC compressor would not come on, the fan worked. The digital control panel has a light that illuminates when the compressor is on. The light was on, but not the compressor, nor was the new pump motor. I turned on the fwd ac unit and it worked fine including the pump motor.
I located the computer module for the aft ac unit and observed several electrical terminals including 4 for the compressor and pump motor. I put a voltage meter on the input terminals and got 120 v but 0 volts on the compressor and pump motor.
I removed the circuit board from the boat after talking to the manufacturers tech. After describing the problem and the tests that I did, he said the board is most likely the problem. Upon removal I noticed a burnt spot on the underside of the circuit board where a relay is soldered to the board.
The manufacturers tech said a new board is $550. Impossible I said, there's not that much to it. Yes, I know, but they don't make that board anymore and you have to upgrade to a new system which includes a new digital control panel was his reply. But my current control panel is just fine I said. Tough luck he said.
After much searching I found the company that makes the circuit board. It was not easy, a small company in New Jersey. I called and in talking to the tech he confirmed that I nailed the problem. So I asked, can you fix it? Yes he said, for $200.
Problem solved. Cool air next week, I hope.
I shudder to think how much this would have cost if I had called a local marine AC repair place.