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**rickst29** · 06-20-2023, 02:33 PM

The propane gas burner, a 12 Volt DC electric coil heater at 1 ohm resistance), and a separate 120-VAC electric coil heater, built with higher-resistance.

Before power gets to the 120-VAC fridge heater coil, it goes through the thermostat and a preceding 3A fuse installed down low, near the terminal block.

The attached diagram is the service manual chart to use in finding the point of failure. Using a volt meter, start from the TM's 120-VAC fridge socket, and work you way into the fridge until you you have reached the heater coil leads.

(In the library, we have the maintenance manual for that Norcold refrigerator 'N300.3' from around 2010. Newer models and other brands are comparable.

06-20-2023, 02:33 PM	#3
rickst29 yes, they hunt lions. Join Date: Aug 2005 Location: Reno, NV Posts: 1,318	The older 3-way fridge (Norcold) contained 3 independent heaters. The propane gas burner, a 12 Volt DC electric coil heater at 1 ohm resistance), and a separate 120-VAC electric coil heater, built with higher-resistance. Before power gets to the 120-VAC fridge heater coil, it goes through the thermostat and a preceding 3A fuse installed down low, near the terminal block. The attached diagram is the service manual chart to use in finding the point of failure. Using a volt meter, start from the TM's 120-VAC fridge socket, and work you way into the fridge until you you have reached the heater coil leads. (In the library, we have the maintenance manual for that Norcold refrigerator 'N300.3' from around 2010. Newer models and other brands are comparable. Attached Thumbnails __________________ TM='06 2619 w/5K axle, 15" Maxxis "E" tires. Plumbing protector. 630 watts solar. 450AH LiFePO4 batteries, 3500 watt inverter. CR-1110 E-F/S fridge (compressor). TV = 2007 4runner sport, with a 36 volt "power boost".