L1 Op Code—Open High Temperature Limit Switch - Norcold 121X Series Service Manual

L1 oP Code—Open High Temperature Limit Switch
The L1 oP indicates the high temperature limit switch is open or disconnected. The switch
is located on the cooling system canister. It is designed to open when the cooling system
boiler temperature exceeds 378 degrees Fahrenheit (192.2 degrees Celsius).
On units with non-resettable switch, replace the switch with a resettable switch. On units
with resettable switches, reset the switch. In both cases troubleshoot for the L1 oP fault
cause.
IMPORTANT
Make sure refrigerator is operating
within level requirements.
2
Burner overheated (Blue)?
YES
3
Heat deflector cap and/or burner box
blocked with insulation?
YES
1 COLD-
9 COLDEST
Begin
Refrigerator cooling before L1 Op
YES
fault displayed?
NO
NO
1. Clear insulation.
2. Replace/reset the high temperature
limit switch.
3. Set controls to LP operation and test
cooling system performance.
IMPORTANT
on
SET TEMP
1 COLD-
9 COLDEST
1
NO
MODE ON/OFF
1. Replace/reset the high temperature
limit switch.
2. Test cooling system performance on AC
and LP gas operation.
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ection
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