Chinook RV

Good evening...I am the new first time owner of a 2000 Concourse. Things are going will, 'but' I have no
power to the frig. Generator runs great and everything else seems to work, but no cool, Could it be
the circuit board? Thank you...

Assuming you've pushed the "on/off" button on the front top, I suppose the next thing could be a circuit board. Though, I don't think that's the traditional failure the Dino board fixes. That board does have 2 grounds though because there's such an issue with proper grounding. Perhaps yours is t grounding at all and therefor no power at all. Others on here will probably have more to comment. Welcome to the forum btw.

Welcome, Hudson! Glad to have you and your Chinook here.

I'm no fridge expert, but a few questions to maybe get things narrowed down a bit.

1) Does it run at all on LP mode (you should be able to hear the flame light if you listen)?

2) Does it cool when running on LP?

3) Does it run on 110 electric mode when you are plugged in to shorepower? (An electric element will take the place of the flame.)

4) Does it cool when running on 110 shore power?

5) Generator should typically be the same as shorepower, but same questions for that?

6) I would ask about DC 12 volts but that's a HUGE draw so if that's not working but other modes are there would be more questions about house batteries and such. Let's see about the above questions first, I'm thinking. I believe the refrigerator DOES require a small amount of 12-volt power to run in any case (some sort of basic requirement), so do you have some amount of 12-volt house battery power? (This is different than the huge amperage it requires to run specifically on DC power.)

7) Never hurts to check grounds. Have you cleaned up the chassis ground for the refrigerator? It will be a screw/connector attached to the frame (go under the Chinook) back behind the generator. Here is a diagram: (There are three more on the other side for other DC functions - they can get dirty/corroded and then not make a good connection.)

(Click on to enlarge)

Thanks guys, but no luck. Shorepower...no lights or action. LP..no lights or action.
Time to call the shop. It's the only big thing I have had to deal with....so far.
Hope to be up and running for a fall trip.
Thanks again..

Welcome! Have you checked the fuses on the circuit board or at the house panel? My Dometic board had 3 fuses. Good luck.

Blue~Go wrote:6) I would ask about DC 12 volts but that's a HUGE draw so if that's not working but other modes are there would be more questions about house batteries and such. Let's see about the above questions first, I'm thinking. I believe the refrigerator DOES require a small amount of 12-volt power to run in any case (some sort of basic requirement), so do you have some amount of 12-volt house battery power? (This is different than the huge amperage it requires to run specifically on DC power.)

For reference, my Norcold manual says:

• Gas operation requires 500 mA for automatic ignition.
  DC operation takes 14.5 amps at 12v.
  Humidity heater mode adds 240 mA to both modes.

Hi. It's me, Deb.

I just got my Chinook Concourse back from mechanic. Yeah!

Plugged into shore power and Dometic fridg does not work. Boo!

Charged.

Flipped breakers...nothing.

I looked thru threads but am unsure what to do/not do first.

Thank you.

I turned propane on.

Stove works, water heater works.

Fridg.....nada.

No lights....I seem to be able to hear pilot(?) Could be from stove....I don't know.

I took the fridg panel off....no evidence of pilot.

Replaced one funky looking 20 fuse....nada.

Lol...just in case made an appt with rv service center...one month out.

Serenity now...SERENITY NOW!



deb

No lights up top mean no 12V power required to control the fridge, irrespective of mode. An obvious first check is the coach battery switch in the driver’s side overhead is on (green light) and not in store position. Next likely culprit is a bad connection due to corrosion, as others have mentioned. After that, another known problem is failure of the original board and the Dinosaur Electronics Micro P-711 aftermarket board fixes that.

The worst-case scenario for no cooling is loss of refrigerant. There was a Dometic fridge recall campaign for model numbers RM2652, RM2662, RM3662, RM2852, RM2862, RM3862 and NDR1062 with serial numbers 713XXXXX thru 319XXXXX. These had a potential to develop a crack in the refrigerant boiler that then leaked ammonia. One tell-tale sign was a yellow stain around the boiler from added dichromate corrosion inhibitor.

Hopefully it's simply an electrical control problem.