Problems with HFL Ocean Cool D.C. air conditioners

[rainbowoyager]

I have been having continuous problems with 2, 12 volt DC air conditioners made by HTL. They are model numbers#DC AIRCO. HSD6012. They are 6000 BTU each. They were installed new about 1 1/2 years ago when we left florida on our circumnavigation and they have never run for more than 2 days without failing. The factory flew out a technician to Panama to replace the control modules and they worked for a couple of days then failed again. We have had other marine air con. technicians work on them in New Zealand and Singapore as well but have no sustainable repair solution. Has anyone else had any experience with these units? Does anyone have a repair/module modification suggestion? We are currently in Malaysia at 5 degrees north and it is opressively warm at times here! We could use a true "Ocean Cool" breeze.
thanks

[GordMay]

I’ve never heard of “HTL”, but I’m certainly impressed that
”.... The factory flew out a technician to Panama to replace the control modules and they worked for a couple of days then failed again. We have had other marine air con. technicians work on them in New Zealand and Singapore as well ...”

Less impressive is the persistence of you’re A/C problem.

What exactly do you mean by "Control Module" ? Is this the Pump Relay, usually mounted on/near the A/C Unit, or the Wall Mounted Ambient Temperature Control (Thermostat) ?

What explanation does the factory offer?

High Heat & Low Voltage are probably the two most common causes of "Controls" (especially electronic) failures.

Regards, & good luck,
Gord