Carver Owners Forum

Thanks tomschauer! Yes my understanding is that the compressor is kicking on. I had a mechanic take a look and his suspicion was the the compressor needed replacing. If that is the case, my next step will be to try and find a new/used compressor to swap out.

If the compressor is running, it doesn't need replaced. Something else is wrong such as low refrigerant.

Check first if the heat setting works. If you get hot air, your compressor is fine and the culprit is your reverse cycle valve.

I tried the heat setting but I didn't seem to get hot air out the vents.
I have tried to find the reverse cycle valve on this unit but I cannot locate it. Honestly, I don't even know what it looks like or where to look. I've read the manual online but it doesn't clearly show where the valve is located. And I didn't see anything that might resemble it either.

One thing I can tell you for sure is that having an Ac/heat pump guy to the boat is very expensive and you may get no joy after........Do you think you could remove the unit yourself and take it to a shop for repair, that way it is on their bench and they can solder away in total bliss.

Considering the age of the unit, perhaps just a replacement would be the best route...all new stuff/controls etc...nice...

Here is something to read that I came across looking for reversing valve parts.

http://www.rses.org/assets/serviceappli ... 620-87.pdf

Do you have an amp probe and know how to check current draw at the compressor common line?

If the compressor is running but drawing low amps it's most likely low on refrigerant.
On the one picture it looks like someone brazed in a service fitting. If this is the case it was most likely low before maybe repaired maybe just refilled.

Sounds like we’re having similar issues. We have a 1986 4207. Our aft ac unit was working( the only 1 of 3 units that work) we left the boat for 2 weeks, came back and turned it on. Everything runs fine but doesn’t blow cool/ cold air. It blows warm. The compressor comes on and off. We have no idea where the reverse cycle valve is to tap it if it’s stuck.

tomschauer wrote:Qr Bbpost Do you have an amp probe and know how to check current draw at the compressor common line?

I have no idea what an amp probe is let alone how to use one lol