Mischief Managed
Guru
- Joined
- Oct 24, 2018
- Messages
- 707
- Location
- USA
- Vessel Name
- Mischief Managed II
- Vessel Make
- 1992 Tollycraft 44 CPMY
I've been helping a friend of mine get his boat ready for a long cruise. The boat has a 16000 BTU Cruiseair reverse cycle A/C unit for the salon and another for the rest of the boat. The boat also has a Kohler 8kw genset.
Just curious if anyone has any ideas.
- The genset control board failed recently and was replaced by a certified Kohler technician. The genset was fully tested and given a clean bill of health. Since then, the salon A/C unit would not stay running on the genset. It would run just fine on shore power. The other A/C unit runs fine on both the genset and shore power.
- When the genset is running, the salon A/C will run for about 15 seconds, then it just shuts down.
- We swapped the starting capacitor just in case it was weak (they are readily available for 12 bucks, and super-easy to swap), no change.
- An A/C technician was hired to look at the A/C unit. He verified the voltage and frequency going into the A/C unit was good from the genset.
- The A/C tech swapped the A/C control board. It did not help.
- The A/C tech rigged it up so that the A/C compressor is now triggered to run from the A/C raw water pump control output rather than the compressor control circuit, and the A/C unit now runs just fine on the genset or shore power. The raw water pump is still connected to the same circuit, BTW.
- The A/C tech cannot explain why it won't work normally on the genset when connected normally, but says it will work as it is now rigged indefinitely.
Just curious if anyone has any ideas.
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