The mid cabin and guest head HVAC system is a Dometic DTU10 10,000 BTU self contained unit and it's very noisy; a loud harsh harmonic vibration with much of the noise coming out of the ductwork. It's a rather new unit on the boat; replaced the original about 2 years ago. This unit does not have the optional compressor noise shield however even without the shield ($290) Dometic states it's an extremely quite unit.... Short of removing the unit and sending it to a watery grave, we have done just about all we can to isolate the noise but simply can't determine other than the fan when running alone is quiet but when the compressor comes on line the insufferable noise ensues.
It's a very common HVAC unit so I thought if anyone else has experienced this situation, what was done to correct?
It's a very common HVAC unit so I thought if anyone else has experienced this situation, what was done to correct?