Thermistor; Ignition Module; Gas Valve Assembly - Norcold 600 Repair Manual

Thermistor

Senses the temperature of the re-
frigerator and tells the Thermostat
when to turn on and off.

Ignition Module

Ignition Module is used only
during GAS operation, and does
the following:
1. Supplies 12 volt DC to operate
the Gas Valve.
2. Supplies power to ignition
electrode to ignite the Burner.
3. Senses the flame through the
electrode.
4. When the Burner ignites and
remains lit, the Ignition Module
turns off the spark.
5. If the Burner does not ignite,
or ignites and goes out when
the sparking stops, the Igni-
tion Module will (a) close the
Gas Valve thereby turning off
the gas supply to the Burner
and (b) illuminate the red
check lamp.

Gas Valve Assembly

The Gas Solenoid valve opens
when 12 volts DC is supplied and
closes when the 12 volts is re-
moved, allowing LP gas to flow to
the Burner when it is open. Whether
or not this 12 volts is supplied is de-
termined by the flame sensing cir-
cuit in the Ignition Module.
The manual shut-off valve allows
the gas supply to be turned off to
the refrigerator.
Figure 11.12 Thermistor
Figure 11.13 Ignition Module
Manual Shut-Off Valve
Figure 11.14 Gas Valve Assembly
1
Solenoid Valve