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Old 14-08-2018, 10:58   #1
Registered User

Join Date: Nov 2015
Location: Key West, FL
Boat: 39 Fountaine Pajot
Posts: 56
Isotherm issues

Our top loading Isotherm is barely 3 yrs old. We live on the hook. 4 days it will run like a charm ice cold, then we come home barely a chill in the box. A day or two later there it goes again running great then boom. We hear the compressor coming on and then off. We are generating plenty of power via solar and wind. We live in the Keys and its been hot. But the inconsistency of the unit is driving me crazy. Any suggestions where I should start
BeachbumKW is offline   Reply With Quote
Old 14-08-2018, 11:27   #2
Marine Service Provider

Join Date: Aug 2004
Location: Ft. Lauderdale
Posts: 1,315
Re: Isotherm issues

First some questions:
Is system water or air cooled?
Is there a Asu module attached to Danfoss module? If so what color is it?
Is there a manual switch on control panel If so have you tried manual operation?
Richard Kollmann is offline   Reply With Quote
Old 14-08-2018, 13:13   #3
Marine Service Provider

Join Date: Aug 2004
Location: Ft. Lauderdale
Posts: 1,315
Re: Isotherm issues

Quote:
Originally Posted by Richard Kollmann View Post
First some questions:
Is system water or air cooled?
Is there a Asu module attached to Danfoss module? If so what color is it?
Is there a manual switch on control panel If so have you tried manual operation?
More questions:
There are two lights on Isorherm panel Red and green did red ever flash when cooling was not good?
Is the Green light on only when compressor is running?
You say compressor was cycling on and off was this when cooling was poor?
Did you try setting thermostat to full Cold?
Has anyone tampered with refrigerant or added refrigerant?
Is the lack of cooling bad at night or in daylight when solar panels are producing power?
Have you tried stopping wind generator to solve the problem?
How about shutting off solar?
What is battery voltage with wind and solar shut off? Compressor running and compressor not Running?
Do you know what normal compressor running i? How about compressor amps running? and again when cooling is not good?

I am sorry the questions are not in order but one or more of them answered will point to what is causing the intermittent cooling problem.
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