Question about Thetford Norcold 2-way RV Refrigerator N641

Open Question

Upon first startup, Compressor runs for 10 seconds then continuously cycles on and off repeatedly. Unit is a Norcold N641 dual voltage 120vac/12vdc unit that is used in our boat. Switching supply vo

Tested temp switch voltage per trouble shooting PDF. 0 volts indicates short and replace temp switch. 2 volts is normal, 5 volts is starter issue. My voltage meter is reading 1.79 volts, don't know what that means... Is the slight miss on voltage mean a resistance issue?

Posted by on

  • Michael Nov 09, 2012

    No way to edit my question. The unit is a Norcold DE461...



1 Suggested Answer

  • 2 Answers

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

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.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Compressor only stays running for about 10 seconds and kicks off. Will not turn on for about 3 minutes and continuously repeats this cycle.

Sounds like the compressor has siezed. Switch off to cool for 3 h.ours and try to restart. If it has a start capacitor, repace it

Jul 14, 2015 | Refrigerators

1 Answer

Norcold de828 dual compressor

Thermistor on starter winding could be faulty Re: Jeff

Nov 07, 2013 | Refrigerators

1 Answer

HitI have a Norcold N641 that is having ignition problems. It lights but the igniter keeps clicking and times out shutting off the gas. Occasionally it will stay on but usually it does not.

Check the flame, if there is a clinker (soot) in any part of the flame the signal will not be picked up, or sensed, if there is flick it off, and you should be good to go.

Jun 30, 2011 | Thetford RV Refrigerator - N641 Model -...

1 Answer

Asus eee pc. upon startup it displays normally

ur display is not sync to the signal being rcd from the PC....visit a hardware engineer....

Dec 14, 2009 | ASUS Eee PC 1000H Laptop

1 Answer

Durotherm Model 57915.331 - not cooling properly

Yes, you should remove the upper cover and check the back side of the condenser as Duo-Therms pull air in from the sides and blow it through the coils from inside the shroud. This usually will cause the compressor to shut down, but only after running for awhile. When you notice that the unit is not cooling as well, or not at all, got up on the roof and remove the shroud, check to see if the compressor is actually running. If the compressor is shut off, the problem lies elsewhere in the system. Check to see if the compressor is cycling on and off or if once it is off it stays off.
If you have a wall thermostat control, check for 12VDC power at the yellow wire when the compressor is off. If power is present, then remove the control box from inside the inner shroud of the unit and check for power at the yellow wire in the there. If it is still present, check for 120VAC power at the compressor relay (black wire with Purple or Blue wire). If the purple or blue wire have 120VAC power, then the problem is upstairs either with start capacitor or the thermal overload (located on top of Compressor). If there is no power at the purple or blue wire, try unplugging the freeze control and jumper the connection on the board (blue connection, white wires) with a small piece of wire, if the compressor comes on and runs, then you have a bad freeze control. If not, then you have a bad control board.
If you have manual controls on the ceiling unit, you could have a bad thermostat. Unplug power from the unit and remove the two wires on the back of the thermostat. With an ohmmeter, check for continuity between the two terminals, if there is, turn the knob and watch the meter. You should not lose connection until the temperature you set is above the temp. inside the unit. If this is ok, then you need to check the selector switch. Also check the components in the upper unit as described in the above paragraph.

Hope this helps,


Rate me please!

Jun 24, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Air not working

The first thing to check is incoming 120VAC power to the unit. This voltage must be 115Volts domestic USA with no less than -10% allowable. If your voltage is below this point, the unit will not work. If your voltage is ok, check the thermostat or selector switch. Make sure that the thermostat (if wall mounted) has 12VDC running to it. If it does not, fix that problem first. If it is manual control, check the selector switch for ok. You should have incoming 120VAC power to the switch and when the High/Cool is selected, check the following.

Terminals LI and C, and L1 and 1 should have continuity. If not, replace selector switch.

Hope this helps,


Apr 25, 2009 | Dometic 57915531 Air Conditioner

1 Answer

Compressor non start, overload cycling

you may want to try a 3-n-1 hard start for your compressor.the 3-n-1 has overload,relay and capacitor in one unit.very easy to is possible your compressor has froze up.but worth a can pick one up a your local appliance parts store.directions are on the bag.

Mar 25, 2009 | Maytag MSD2454G Side by Side Refrigerator

Not finding what you are looking for?
Thetford Norcold 2-way RV Refrigerator N641 Logo

Related Topics:

23 people viewed this question

Ask a Question

Usually answered in minutes!

Top Thetford Refrigerators Experts

John Tripp
John Tripp

Level 3 Expert

4655 Answers

christian nielsen

Level 3 Expert

358 Answers

tom wright
tom wright

Level 2 Expert

219 Answers

Are you a Thetford Refrigerator Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides