Post edited 1:31 pm – July 30, 2010 by Rich P

Cruisair 3 knob WFAH7 (I think) will not keep the compressor running. "Start" will start the march pump and fan, "run" will start the compressor for about 5 seconds then stop (slight hissing sound at the evap that stops). Does this as soon as it's started. On "run", fan/pump will continue to run, and the "hiss" will cycle about every 4-5 min. Is this the notorious low freon or something else? If it is low freon, can r414b be used? Let me know where to start or if you need more info.

Thanks,

Rich

Post edited 5:06 pm – July 30, 2010 by Rich P

There is no change in temp on the compressor or water coil.

Another thing is when it goes from start to run the fan will slow down and then gradually come back to original speed.

Also when the compressor runs (for the short ammount of time) it almost sounds like the noise you hear when filling a bottle with water when it gets near the top (if that makes any sense) and then the compressor shuts off.

I have a bid in on the 16 and will head to the boat to look at the 7's caps. Thanks for your knowledge and the great place to share it. I'll let you know what happens.

Capacitors & Relay….

Run Cap:

Cruisair # 4040115…15MFD/400 volts

Start Cap:

Cruisair # 4040521…21-25 MFD/330 volts

Start Relay:

Cruisair # 4130150

GE # 3ARR3-T3P3

Steve~

Post edited 11:26 pm – August 4, 2010 by Rich P

New relay and start cap are in and the compressor now runs but no cold air (run cap is sill on order). Flushed the water coil with some muriatic acid I had and no change. Compressor was around 145F, smaller copper lines on top between comp and control box range from 100 to 135 (three seperate lines and not sure what each one is off top of my head), and water inlet is about 86. When the 16 gets drained and refilled I plan on having them check the pressures on the other units while there but won't know until then.

Any advice on what to do or am I stuck until there is a set of gauges on there?