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Saenz · 12-27-2022, 12:05 PM

Having trouble with Norcold 1200L RIM refrigerator. it kept blowing the fuse, have replaced the circuit board. it will run for up to 18 hours then blows again. Any suggestions?

Old-Biscuit · 12-27-2022, 12:51 PM

Which Fuse?

AC Glass Fuse.......shorted heater element (replace both)
DC Fuse...............could be gas valve, climate control/flap heater, exterior fans

Do you get any ERROR CODES?

Saenz · 12-27-2022, 01:47 PM

No codes, it loses all power.

NXR · 12-27-2022, 02:14 PM

Quote:

Originally Posted by Saenz

No codes, it loses all power.

If it has fans on the back, perhaps one has failed. That is a common cause of a delayed fuse failure. The fridge gets hot at the condenser at the top rear of the fridge, tries to turn the fans on, and the fuse pops.

If you access the condenser there may be a thermal switch on it. Pull one wire off and see if the fuse still blows.

Ray

Old-Biscuit · 12-27-2022, 02:26 PM

Losses all power.....so that is a DC issue

Fans most common issue, flap heater shorting also

Saenz · 12-28-2022, 01:27 PM

Are these fans accessible from the outside or does the refrigerator have to be removed?

Old-Biscuit · 12-28-2022, 01:42 PM

If fridge is in a slide out........the t-stat can e accessed via upper side wall vent cover

Fans.......fridge has to be slid out to access them
OEM fans are mounted just above the absorber tube bundle mid-center line

NXR · 12-28-2022, 04:42 PM

Quote:

Originally Posted by Saenz

Are these fans accessible from the outside or does the refrigerator have to be removed?

As OB noted, if the fridge is in a slide you can access the thermal switch through the top side vent. Or you could remove the cover on the roof if the fridge is not in a slide and probably pull a wire off that way.

If a fan is bad on our 1210 in a slide, I can remove the top vent, remove a vertical baffle, and reach the two fans.

The first step for you is to yank a wire off the thermal switch. Either the fuse will continue to blow or it won't. If it does still blow it's not a bad fan. If it does not blow then dig into the 1200 installation or service manual to see where the fans are located.

Ray