Cooling System Diagnostic Flowchart - Norcold 121X Series Service Manual

Cooling System Diagnostic Flowchart

WARNING
Do not bypass or modify the refrigerator
controls. Do not wire the heater directly.
Heaters are supplied power through a
fused circuit.
Replace cooling system
Correct installation and ventilation
66
S 8
ection
YES
Any signs of leakage?
NO
Installation/ventilation meet guidelines?
Level refrigerator as specified in
Owner's Manual.
Check as required:

AC heaters amp draw: 2.5 to 2.1 A per heater.

Burner: 7-slot., clean
 Orifice: LP18, clean
 Gas pressure: 10.5 to 11.5 in. w. c.
 Check condition of door gaskets
 Align doors as required.
Do not power ON the refrigerator if the
cooling system has a leak or is suspected
of having a leak.
Begin
1
NO
2
WARNING
Signs of cooling system leakage:
• Yellow ammonia residue.
• Ammonia smell.
YES
Check heat sources.
NO
Leveled operation?
YES
NO
Heat input device operating normally?
YES
NO
Doors/gaskets okay?
YES
Go to page 67
3
4
5