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Topic: Duo therm penguin Ac (Read 427 times) previous topic - next topic

Duo therm penguin Ac

My ACs are the original 13.5 duo therm units. The rear unit runs as it should. The front unit runs fine on the heat pump (compressor runs), on AC the fan runs but the compressor doesn't ( does not try to start) any ideas? I hav checked all the phone cable connections as well as the connections at the control board up top. All dip switches on the front control board are off. As best I can tell that's where they should be.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: Duo therm penguin Ac

Reply #1 –
Do you have 2 furnaces? If you do then the furnace dip switch should be on.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: Duo therm penguin Ac

Reply #2 –
Quote from: red tractor –
Do you have 2 furnaces? If you do then the furnace dip switch should be on.
I do have 2 furnaces, no furnace dip sw 2 thru4 zones , stage and heat strip. Control board is 3106482.015.

All functions on both zones work as they should just no compressor on front ac in ac mode.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: Duo therm penguin Ac

Reply #3 –
Do you have the original thermostat? It might have failed. If you can switch the wires in the thermostat and the problem goes to the rear then you would know.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Duo therm penguin Ac

Reply #4 –
Quote from: craneman –
Do you have the original thermostat? It might have failed. If you can switch the wires in the thermostat and the problem goes to the rear then you would know.
I have a 4 button comfort control thermostat. Phone cord connection only. I'll have to see if I can identify the zone 2 connection at the front ac.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: Duo therm penguin Ac

Reply #5 –
You suppose it's time for a new unit and thermostat? I'm in the same situation. Originals still working kinda sorta!
1996 U295-36, Cummins 300hp, 8.3. Build number 4864. Vin number 1F97D536XTNO54271. Purchased October 31, 2019.

Re: Duo therm penguin Ac

Reply #6 –
For those thinking it's the 4 button controller, consider pinging Jim Frerichs.  His ad is old, but he's still active on the forum.

Dometic 4 button thermostat repair
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320
 

Re: Duo therm penguin Ac

Reply #7 –
Problem solved! In the process of removing the capacitors from the front Ac I noticed a  2 wire plug hanging loose. It is the remote temperature sensor so I plugged it Back in. Unplugged it this morning everything works as it should. Go figure.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country