Question about Heating & Cooling

3 Answers

1997 Airstream Excella 25 with Orig. Equip. Duo-Therm Penguin 630215 Heat Pump and Duo-Therm Comfort Control Center. In preparation for upcoming trip I decided to check out my A/C because it's going to have to work overtime. When I did a test run, condensate started dripping from the interior at the unit so I took down the interior shroud and discovered condensate was coming from cracks in the drain pan. Obviously, the condensate drain hose was clogged, and backed up the water and the water was taking the available route thru the cracks. Long story short, I lifted the A/C unit, replaced the drain pan, unclogged the condensate hose, re-installed the A/C unit, hooked the wires up but now, the Comfort Control Center doesn't get power. I am getting 110v to the unit, but somehow, the 12 volt which drives the Comfort Control Center is not working. All the wires with the exception of the telephone "control" wires were marked with different colored markers so they matched back up perfectly when the A/C unit was re-installed. I forgot to mark the telephone lines for re-hookup, so, I thought, black matches black. so plugged the two black telephone lines together, not realizing until later that they were both coming from the A/C controller board. I'm just about sure that I should have hooked up one of the black telephone lines to the silver telephone line (which I later determined) leads to the Confort Control Center. Anyway, no power to the Comfort Control Center.....Help!!

Posted by on

  • 1 more comment 
  • thombiz Aug 04, 2010

    The manual says "if the Comfort Control Center does not come on when any button is pushed, then replace it". I'm thinking, "it worked before" then was "unplugged", "then plugged back in, so no event took place to damage it". I'm thinking there is no signal coming thru the phone lines.

  • thombiz Aug 04, 2010

    I've determined that I have 12VDC power up to the pigtail that plugs into the relay board. I checked the phone lines and could not find any that had power going to the CCC.

  • thombiz Aug 05, 2010

    Only slightly helpful by keeping me looking in the right area. I would think that people who work with this stuff daily would have known about the fuse for the 12VDC. Otherwise, the advice I received was the "parts changer" variety!

×

Ad

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,035 Answers

Hi. The power might tripped off when you plugged it in to a wrong wire. Double checked again the wirings and do a test again. Use a tester if possbile.

Posted on Aug 04, 2010

  • 8 more comments 
  • thombiz Aug 04, 2010

    This morning, I checked the 12vDC red and black to the relay board and the red had juice all the way to the pigtail end at the relay board. Next I went inside and check the positions on the "phone" line ends and none of the 4 positions had juice, so it makes me think a relay is bad. Any thoughts?

  • Angelito Rabago
    Angelito Rabago Aug 04, 2010

    You are right. You need to change the relay for this thing to work again.

  • thombiz Aug 04, 2010

    Close! I decided I'd better get busy and find another relay board so I took my note pad up on the roof to write down the model number. As I was searching the board for a model number, I discovered a 3 amp automotive type fuse in the upper left hand corner. I couldn't tell if it was blown or not, even using a jewelers loop, so I just replaced it with a new one. All is right with the world again!!! Works perfectly. Just a fuse on the relay board.

  • thombiz Aug 04, 2010

    Close! I decided I'd better get busy and find another relay board so I took my note pad up on the roof to write down the model number. As I was searching the board for a model number, I discovered a 3 amp automotive type fuse in the upper left hand corner. I couldn't tell if it was blown or not, even using a jewelers loop, so I just replaced it with a new one. All is right with the world again!!! Works perfectly. Just a fuse on the relay board.

  • thombiz Aug 04, 2010

    Close! I decided I'd better get busy and find another relay board so I took my note pad up on the roof to write down the model number. As I was searching the board for a model number, I discovered a 3 amp automotive type fuse in the upper left hand corner. I couldn't tell if it was blown or not, even using a jewelers loop, so I just replaced it with a new one. All is right with the world again!!! Works perfectly. Just a fuse on the relay board.

  • thombiz Aug 04, 2010

    Close! I decided I'd better get busy and find another relay board so I took my note pad up on the roof to write down the model number. As I was searching the board for a model number, I discovered a 3 amp automotive type fuse in the upper left hand corner. I couldn't tell if it was blown or not, even using a jewelers loop, so I just replaced it with a new one. All is right with the world again!!! Works perfectly. Just a fuse on the relay board.

  • thombiz Aug 04, 2010

    Close! I decided I'd better get busy and find another relay board so I took my note pad up on the roof to write down the model number. As I was searching the board for a model number, I discovered a 3 amp automotive type fuse in the upper left hand corner. I couldn't tell if it was blown or not, even using a jewelers loop, so I just replaced it with a new one. All is right with the world again!!! Works perfectly. Just a fuse on the relay board.

  • thombiz Aug 04, 2010

    Close! I decided I'd better get busy and find another relay board so I took my note pad up on the roof to write down the model number. As I was searching the board for a model number, I discovered a 3 amp automotive type fuse in the upper left hand corner. I couldn't tell if it was blown or not, even using a jewelers loop, so I just replaced it with a new one. All is right with the world again!!! Works perfectly. Just a fuse on the relay board.

  • thombiz Aug 04, 2010

    Close! I decided I'd better get busy and find another relay board so I took my note pad up on the roof to write down the model number. As I was searching the board for a model number, I discovered a 3 amp automotive type fuse in the upper left hand corner. I couldn't tell if it was blown or not, even using a jewelers loop, so I just replaced it with a new one. All is right with the world again!!! Works perfectly. Just a fuse on the relay board.

  • Angelito Rabago
    Angelito Rabago Aug 04, 2010

    Good job. Feel free to go back to fixya if you have any questions and clarifications.



    Have a great day!

×

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,272 Answers

There is a re-set procedure you can try that may work. IF this does not work then check the connection on the back of the controller. It is very possible the thermostat is bad. The bad news is these are obsolete and an upgrade is needed which includes changing the upper control boards in the AC unit on the roof. The new controller would be a 5 button. Not to many shops will attempt to repair the controller but it would be an option to call around. Here is the procedure.....
To initiate a RESET, do the following in the order
Listed:
1) Turn control on to ensure enunciator data and light
Are present. If data and light are present, continue to
Next step. If data and light are not present, THE CONNECTIONS NEEDS TO BE CHECKED.
2) Depress MODE switch to activate enunciator light.
3) Simultaneously depress the bottom two buttons
(Temperature UP and DOWN) and hold.
4) While holding these buttons down, depress the
MODE button once and release.
5) Release the two buttons previously held down.
6) Depress the MODE button once again.
7) At this time the light should extinguish, and the mode
should register "OFF". If not, repeat Steps 2 through 6.
8) Retest system ensuring that all functions are present
and operational.
Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Posted on Aug 04, 2010

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Heating & Co... Master
  • 1,889 Answers

The duo-therm phone line is reversed on each side
this will help you troubleshoot your Excella:
bryantrv.com/docs2/docs/ccc.pdf

Posted on Aug 04, 2010

  • thombiz Aug 04, 2010

    I went to section 5.1 as directed and all it said was "if the unit fails to illuminate and display, replace it". That part was already obvious, however, for it to be faulty, something would have had to have happened to it, like a high volt shock, but it was unplugged, so nothing could have happened to it. When I re-hooked up the phone lines, it should have taken off. Makes me think the juice is not coming thru the phone lines.

  • Jim Goldsmith
    Jim Goldsmith Aug 04, 2010

    start at the trailer power (I believe you have an diode inverter that feeds the duo-therm control
    through the telephone control cable) I don't know for sure but, my older Excella II had that configuration. If you did miss connect the Duo-therm control it will need to be replaced but, I don't think that's the problem. on some units the control is fed off the start relay on the roof AC unit.
    the phone line has: black, yellow, red, green at the AC unit and, green, red, yellow, black at the control end. when the cat3 (phone) clip is facing down. the phone line runs into a receptacle on the AC unit. It's very late for me; If I can help you in the morning I will; Good Luck.


×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Ac compressor runs but will not cool


check thermostat, replace capacitors amp compressor to be sure its running if not relay module issue.

Aug 08, 2015 | Dometic 651815 Duo Therm 13,500 BTU...

1 Answer

Duo Therm 3109228.001


sounds like thermostat issue not communicating with relay modeule

Aug 01, 2014 | Dometic 3109228.001 Duo Therm Comfort...

1 Answer

My 19 ft airstream's Penguin duo-therm a/c unit just started blowing out HOT air!!!! Why is this occurring?


If you have a heatpump model a/c unit, and it is blowing air that is hotter than the ambient temperature inside the airstream, then it is likely that your reversing valve is stuck in the open or closed position. A heatpump is basically an air conditioner that will also run in reverse (via the reversing valve) in order to heat instead of cool. The valve can get stuck for a variety of reasons, including; faulty wiring caused by rodents chewing or vibrations, insulators (dirt) between switch surfaces, or it could be a mechanical problem within the valve its self; these valves break often.

Sep 12, 2013 | Dometic Heating & Cooling

1 Answer

No display


takes 12 volts d.c to work.

Jun 16, 2013 | Dometic 3109228.001 Duo Therm Comfort...

1 Answer

Duo-Therm


could be a bad preassure switch..take off cover and find a switch mounted on one of the freon lines . pull the wires off and connect them together see if it runs....if so, order a new switch......DONT keep the wires tied together and continue to run it..could cause an overload and short out system..this is only for a test..if it runs ok for like 10 mins then replace psi switch.any questions call me...352-875-3153..im mike

Aug 14, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Both roof top units on RV cool for awhile the go off


May be low voltage problem or bad connection this may cause controller to shut one or both down. Need to talk to RV dealer for assistance on this system.

Jun 28, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Penguin AC cycling


Did you try contacting Dometic directly, to speak to a technical assistant. ( www.dometicusa.com )

Jul 09, 2008 | Dometic Rooftop RV Air Conditioner

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

125 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

2597 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...