Fault codes / Norcold fridge / L1 oP
Norcold fridge code L1 oP
What it means: High temperature limit switch open or unplugged.
What to check
The limit switch on the boiler housing (part of the recall kit on many units) opened or its plug is off. Reseat, check for a boiler overheat, replace the switch.
Tech detail
Do not jumper it.
Learn the system
- Absorption fridges (gas/electric)
- 12V compressor and residential fridges
- Absorption fridge won't run on gas
- Absorption fridge won't run on electric
Practice it on a service call
Guided diagnosis
Other Norcold fridge codes
- Norcold fridge code no co No cooling detected
- Norcold fridge code no FL Burner did not ignite or re-ignite
- Norcold fridge code no AC No 120V AC available
- Norcold fridge code AC LO 120V is too low
- Norcold fridge code dc LO 12V control voltage too low
- Norcold fridge code dr Door open more than 2 minutes
- Norcold fridge: No display No 12V control power, or the fridge is off
- Norcold fridge: Flashing temperature Backup Operating System (BOS) is active
- Norcold fridge code AC rE Internal control fault
- Norcold fridge code AC HE Internal control fault
- Norcold fridge code Sr Internal control fault
- Norcold fridge code AC HI 120V above 132V
- Norcold fridge code Lo dc 12V below 10.5V at the power board (alarm below 8.5V)
- Norcold fridge code dc HI 12V above 15.4V
- Norcold fridge code dc rE DC heater relay stuck closed (3-way)
- Norcold fridge code dc HE DC heater current too low (3-way)
- Norcold fridge code no dt Display lost communication with the power board
- Norcold fridge code FL -- Flame sensed when there should be none
- Norcold fridge: ON and CHECK both flashing No energy source: no 120V and the burner did not light
- Norcold fridge: Check lamp on Ignition failure, gas lockout
- Norcold fridge: ON lamp blinks off 3 times every 3 s AC heater open
- Norcold fridge: ON lamp blinks off 5 times No cooling detected
Full field guide: Norcold 1200 series fridge
Codes come from the maker manuals and public service sheets. Your model's own chart always wins, and LP and 120 volt work belongs to a qualified technician.