Norcold 121X series, Service Manual

Page: 43 / 100

S
ection
5
41
Gas Valve Replacement Procedure
To replace the gas valve:
1. Turn off the refrigerator.
2. Disconnect DC power at the power board.
3. Unplug AC cord at the RV outlet.
4. Shut off the gas valve(s) at the LP gas
container(s).
5. Disconnect the 12 volt DC power supply
wires at the gas valve solenoid coil.
6. Disconnect the LP gas supply line.
7. Disconnect the burner tube.
8. Remove two, #8/32 x 3/8" Phillips screws
holding the existing gas valve to the bracket,
then remove the valve. See Figure 5-3, page
42.
9. Install the new gas valve on the bracket and
fasten it to the bracket using the two, #8/32 x
3/8" Phillips screws removed in step 8 .
10. Reverse steps 7 through 5 to connect the LP
gas supply line and the burner tube to the
new valve.
WARNING
Always use two wrenches to loosen
or tighten fittings to prevent damaging
components, piping, or fittings. Damaged
components, piping, or fittings create the
potential for gas leaks.
11. Open the gas valve(s) at the LP gas
container(s).
12. Leak test the LP gas supply line fitting.
13. Plug the AC cord into the RV outlet.
14. Connect 12 VDC power to the power board.
15. Turn on the refrigerator, then set the MODE
to LP gas operation.
16. Leak test the gas valve burner tube
connection fitting, the burner tube orifice
connection at the orifice assembly.
Serviceability
The gas valve has no replaceable parts.
The 12 volt DC solenoid coil terminals should
be maintained clean and tight. The valve’s
body and solenoid coil should be maintained
clean and dry.
For steps 6 through 12 refer to Figure 5-3,
page 42.

NOTE
Tools:
#2 Stubby Phillips screwdriver
9/16" Open end wrench
5/8" Open end wrench.
Leak test solution
WARNING
Do not wet or spray leak test solution on
or near electrical connections or electronic
components. All water leak test solution
conducts electricity and may create
electric shock hazard, shorts, and/or
damage circuits.
WARNING
Do not use leak test solutions that
contain ammonia or chlorine. Ammonia
and chlorine corrode brass and cooper
components.