High pressure error on Climma AC

General
1

Our Climma air conditioner is displaying an HP error code, We have had an HVAC person out to look at it to no avail.

It in the owner hull that is giving the issue. The other 2 are running with no errors. We found that one of the vents’ house was not attached, but did not solve the problem. We ran water through the pump with a hose attachment and came out clean on the exit port. Needless to say strainers are always clean.

But, we still get the HP error. Sometimes it runs for 30 minutes, other times for 5 minutes. Outside water temperature doesn’t seem to have any effect.

Any suggestions?

2

Have you had any other issues with this unit? (i.e. needing Freon refills?)

A simple exercise would be to circulate Barnacle Buster through the compressor. Either the cooling water isn’t pulling enough heat away or something is blocking the compressor output (i.e. ice in the expansion valve).

3

No, the HVAC guy checked the feon. He did cycle water through and looks that there is a good flow exiting the boat…but have thought about the barnacle buster…

4

Is it cooling the way that you would expect when it shuts down?

5

It works are desired for cooling…it is the heating that does not work as desired and shuts down.

6

Disconnect both vents, if it woks without throwing the high pressure code the problem is your ductwork.

7

After many moons this has been a thorn on my side. As I’ve never done HVAC before, it has costs me over $1000 to have people work on it. Of coarse this is not covered by warrant :-(, but I did learn a lot from Tony the HVAC person. We cleaned the lines and still HP errors. We fixed the incorrect feon pressure and still HP errors. We contacted Climma for their help.

We thought it was a unit issue. But looking more into it, was all an original HVAC installation issue.

  1. First issue was we were getting water in the bilges. As we could not get behind the unit to see, we had to cut a hole under the battery to get access to it. The door serves only the purpose of cleaning the filters. There we found a zip lock bag full of washers and bolts that was covering the overflow so the pan would fill from condensation and overflow.

  2. The tubing was not attached to the vent exit port. So only about 1/2 of the airflow was exiting the tube, backing the pressure up. I dremaled the wood vent from the ceiling and reattached the vent to the plastic vent hole once the HVAC tech pointed that out.

  3. The ‘Y’ between the two vents in the owner hull was installed backwards and forcing 120 degree air flow. The tech ordered a part and installed it correctly so the flow is 45 degrees now. The new ‘Y’ has a flap so you can divert more to one or the other vent.

  4. There is still an unnecessary 180 degree “smashed” turn. I still need to go in and fix this. The fan can be easily rotated and the flow will be a lot smoother. Later task.

But with these changes, the bilge and High Pressure error seems to be fixed.

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