knocking noise when a/c runs

talieho · Post by **talieho** » July 12th, 2020, 10:05 pm

i have an 1987 4227 cockpit motor yacht. Recently started to hear a noise at the back of the boat on the starboard side only when then a/c is running. Sounds like a baffle has come loose. There is a cavity that is inaccessible. Both the starboard engine exhaust and a/c pump line lead to this cavity which is exactly where the noise comes from.
Any thoughts on what this issue is or possible solution would be greatly appreciated.

g36 · Post by **g36** » July 13th, 2020, 12:53 pm

Compressor maybe. Something in fan?

talieho · Post by **talieho** » July 13th, 2020, 4:37 pm

Thanks for the reply, compressors arent anywhere near this area and you can actually adjust the sound when you press on the exterior in that spot. Fan maybe, but sure why they'd tuck one in there and not make it accessible.

g36 · Post by **g36** » July 13th, 2020, 6:45 pm

yeah I agree with you on the installation of things many times doesn't make since. Good luck

knocking noise when a/c runs

knocking noise when a/c runs

Re: knocking noise when a/c runs

Re: knocking noise when a/c runs

Re: knocking noise when a/c runs