Norcolc 1200 cooling fan

[Trackrig]

I have a Norcold 1200 installed in a 2005 Fleetwood Excursion 39S DP. We just flew into St Louis and got the MH out of storage. It was warm outside. Inside the MH and the refer according to the remote thermometer it was over 90F.

The refer is giving us problems. The refer will quit and the front control panel shows "NO CO". I've had to get inside the control box on the rear of the refer and reset it twice using a jumper between a ground point and the #2 pin on the top left of the main pin connection.

This restarted the refer, but then it quit again four hours later. In further internet research it was suggested to unplug the thermister, which we did and used the jumper on the #2 pin again. It started up and this time it has continued to operate longer than four hours. We'll go look for a new thermister tomorrow.

In further research it's suggested to check the OEM fan on the back of the refer above the coils. In looking the Norcold 1200 installation instructions, with pictures, it shows two fans when the refer is installed in a slide out to help push the heat out the top side vent. The pictures DO NOT show any fans installed when the refer is INSTALLED IN THE MAIN BODY OF THE MH and has the long vent hood directly above the refer on the roof.

So for those of you that have been into a 1200 installed in the main body of the MH (not in the slide) does it have a fan or fans on it that just doesn't show on my installation instructions?

Any other suggestions?

Thanks,

Bill

[vegasfoodguy]

tropical36 wrote:

doxiemom11 wrote:
Ours is in the main body and we have never seen or heard any fans. Don't think we have them.

I don't hear them either, but supposedly have them. No codes to the contrary, either and worked as well as you could expect a NEVERCOLD to work.
Along the way, I've installed a 120vac fan in the back for when the fridge is loaded and we have other than inverter power. Most recently I installed an ARP contol box and one of the 12vdc fans that came with it, to replace the failed NORCOLD recall box.
The 12v fan always runs, however, but with a low current draw and not a problem when running on propane. Besides, the inverter supplies a lot more, like a small basement fridge, TV...etc... when staying at Wally World or the like.

The ARP is in addition to, NOT replace the Norcold box.

Terry

[Trackrig]

I doubted it was the thermister, but it was cheap as said and something I could try. Something made it work again, at least for now.

If I was any place near home where I had my tools and garage, I'd pull the refer myself but since I'm not, I'm trying to get an appointment in Indiana to have it done when we pass through there.

Bill

[dougrainer]

1. ALL 1200/1210 Norcolds have 2-12 volt cooling fans
2. The NO CO means FIND THE PROBLEM THAT CAUSED THE NO COOLING. Don't just restart and reset. The system is designed to PROTECT and stop you from Ruining the Cooling unit.
3. IF NOT in a slide room, you will have to PULL the refer out to replace the Fans AND the Fan Tstat. You ALWAYS replace both the Fan Tstat and BOTH fans if the refer is more than 5 years old.
4. IF the fans are inop, odds are the Fan tstat is the cause. Since you have to pull the refer to replace the Fan tstat, It is best to also replace the 2 fans.
5. When you replace the Fan Tstat and Fans, you run a 2-wire jumper from each side of the Fan Tstat down the backside of the refer and this allows you to manually engage the fans for future testing IF the fans fail again. The Fan tstat fails first and with the wire jumper you can run the fans manually to keep the refer cooling.
6. I doubt your Thermister is bad as it is rare for a faulty Thermister to cause a NO CO. It is more common to not allow correct lower temps. But the Thermister is a cheap and easy thing to replace. Replace it and when the refer is back operating correctly remove it and reinstall the old to see if it still operates correctly, then keep the new one as a spare. Doug

[wborst]

My Norcold 1200 LRIM is not in a slideout. It does have two fans midway up on the rear of the cooling unit. I replaced both fans and the thermostat that were bad. I am currently in a campground with 90 + degree temps. My freezer is at 6 degrees and the fridge is at 34 degrees with the control set at 6. These fans make a tremendous difference.
Bill

[vegasfoodguy]

Trackrig wrote:
I have a Norcold 1200 installed in a 2005 Fleetwood Excursion 39S DP. We just flew into St Louis and got the MH out of storage. It was warm outside. Inside the MH and the refer according to the remote thermometer it was over 90F.

The refer is giving us problems. The refer will quit and the front control panel shows "NO CO". I've had to get inside the control box on the rear of the refer and reset it twice using a jumper between a ground point and the #2 pin on the top left of the main pin connection.

This restarted the refer, but then it quit again four hours later. In further internet research it was suggested to unplug the thermister, which we did and used the jumper on the #2 pin again. It started up and this time it has continued to operate longer than four hours. We'll go look for a new thermister tomorrow.

In further research it's suggested to check the OEM fan on the back of the refer above the coils. In looking the Norcold 1200 installation instructions, with pictures, it shows two fans when the refer is installed in a slide out to help push the heat out the top side vent. The pictures DO NOT show any fans installed when the refer is INSTALLED IN THE MAIN BODY OF THE MH and has the long vent hood directly above the refer on the roof.

So for those of you that have been into a 1200 installed in the main body of the MH (not in the slide) does it have a fan or fans on it that just doesn't show on my installation instructions?

Any other suggestions?

Thanks,

Bill

I have them and they work, Not in the slide.

[SCVJeff]

When these fans quit, either or both, there are no codes thrown

[tropical36]

doxiemom11 wrote:
Ours is in the main body and we have never seen or heard any fans. Don't think we have them.

I don't hear them either, but supposedly have them. No codes to the contrary, either and worked as well as you could expect a NEVERCOLD to work.
Along the way, I've installed a 120vac fan in the back for when the fridge is loaded and we have other than inverter power. Most recently I installed an ARP contol box and one of the 12vdc fans that came with it, to replace the failed NORCOLD recall box.
The 12v fan always runs, however, but with a low current draw and not a problem when running on propane. Besides, the inverter supplies a lot more, like a small basement fridge, TV...etc... when staying at Wally World or the like.

[Ivylog]

All 1200s have two fans and you should be able to hear them running from outside. Unfortunately you have to remove the unit to get to them and the snap switch that turns them on. A 120V fan blowing in the the outside vent if you are parked will get it to work.

With a platform almost as high as the bottom of the refrigerator you can slide it out and turn to access the back. Four screws top and bottom plus a couple on the bottom from the outside hold it in. Unhook the power, water, and propane and with someone prying on the bottom while you pull on the inside...first inch is the hardest it will slide out. You can run a pair of wires from the snap switch down so you can manually turn them on...if both fans are not working it's usually the snap switch. I added a third 12V fan at the bottom to help the air flow.

Before removing check the amount of gap with a mirror, between the coils and the outside wall...less is better and adding a baffle while out is something many have done as the unit was never installed correctly and a 1200 needs all the help it can get.

I doubt your thermistor is bad and there is a procedure where you can have it show the temp of the fins on the control display.

[SCVJeff]

There are two box fans mounted about 1/2 way up the rear of the fridge, just above the lower heat exchange coils. They are standard Norcold issue with all 1200 refers. If you don't hear them they are likely broken. This if another Norcold fopa.. the OEM fans probably lack the IP rating to live in that enviroment.

[doxiemom11]

Ours is in the main body and we have never seen or heard any fans. Don't think we have them.