13th Oct 2026
Norcold 1200/ 1210 Error Codes: Quick Troubleshooting Guide
What is your Norcold 1200 or 1210 display telling you?
The Norcold 1200 and 1210 (including the 1200LR, 1201LR, 1200AC, 1210AC, 1211 and IM ice maker models) show trouble as a two-part code on the temperature display. Most codes alternate between two words, like no and FL, while the alarm beeps. Find yours below, then open its step-by-step flowchart for the fix and the exact part.
1. Find your code
Watch the display for a few seconds so you catch both halves of the code.
2. Quick reference: every 1200 / 1210 code
The likely part is where each flowchart usually ends up. Run the flowchart first, since a reset, a loose plug or low voltage can cause the same code.
| Display | What it means | Likely part | Fix |
|---|---|---|---|
| Display Fridge won’t turn on. 12V, F1 fuse, board, harness or display. |
Power Board 628661 / 6212XX | Flowchart → | |
| 1–9your setting blinks | Display Whatever temperature setting you have (1–9) blinks when you press SET TEMP. Thermistor open or shorted. |
Thermistor 621742 | Flowchart → |
| AC.↔HE. | Electric Both AC heaters open or not connected. |
AC Heaters 618872 / 630807 Power Board 628661 / 6212XX |
Flowchart → |
| AC.↔rE. | Electric AC heater relay on the board stuck closed. |
Power Board 628661 / 6212XX | Flowchart → |
| no.↔AC. | Electric Under 85 volts AC at the board. Outlet, cord or F2 fuse. |
Power Board 628661 / 6212XX | Flowchart → |
| dc.↔LO. | 12V DC 12V DC under 10.5 volts. |
Battery / charging system | Flowchart → |
| dc.↔HI. | 12V DC 12V DC over 15.4 volts. |
Battery / charging system | Flowchart → |
| no.↔FL. | Propane Burner didn’t light in the 30-second try. |
Spark Electrode 61692222 Power Board 628661 / 6212XX |
Flowchart → |
| FL.↔-- | Propane Flame sensed with the gas off. Gas valve or board. |
Power Board 628661 / 6212XX | Flowchart → |
| Sr. | Propane Flame sensing circuit fault on the board. |
Power Board 628661 / 6212XX | Flowchart → |
| L1.↔oP. | Cooling High temperature limit switch open. Boiler overheated. |
High Temp Switch 637360 Fan Thermostat 640235 Nordic Cooling Unit 6610 |
Flowchart → |
| dr. | Doors Fresh-food door sensed open over 2 minutes. |
Latch, hinge or door switch | Flowchart → |
3. Read the fault history
The 1200/1210 saves every fault, even after it clears from the display. That makes it easy to catch a problem that comes and goes.
- Enter diagnostics: hold MODE and SET TEMP together. Let go when 1 shows. 88 appears within two seconds.
- Step through screens: press MODE. The screen number shows on the left. Screen 3 shows fin temperature (00 means an open or shorted thermistor).
- Screens 4 and 5 are the fault history. Lit segments on the right digit are stored faults (see the tables).
- Clear on screen 6: it shows Er. Hold SET TEMP until CL appears, wait five seconds, then hold SET TEMP until Er shows again.
- Exit: hold MODE and SET TEMP together, or turn the fridge OFF and back ON.
SCREEN 4
| Segment | Stored fault |
|---|---|
| 1 | Burner failed to light/relight |
| 2 | Door open over 2 minutes |
| 3 | DC voltage low |
| 4 | DC voltage high |
| 5 | AC selected, no AC voltage |
| 6 | AC relay stuck closed |
| 7 | AC heaters failed open |
SCREEN 5
| Segment | Stored fault |
|---|---|
| 1 | Thermistor disconnected or malfunction |
| 2 | Flame present with gas valve off |
| 5 | Flame sensing (Sr) fault |
| 6 | AC voltage over 135 volts |
| 7 | No cooling sensed |
4. No code, but something’s wrong?
Cools on LP but not on AC
Check for at least 108 volts AC at the outlet. If the display shows AC HE or no AC, follow that flowchart. One failed heater can also cause weak electric cooling without a code.
Cools on AC but not on LP
Usually a dirty burner or orifice, low gas pressure (needs 10.5–11.5″ w.c.), a clogged flue or a missing flue baffle.
Poor cooling in every mode
Check the venting, both rear fans and the fan thermostat first. If those are fine and the fridge is level, the cooling unit may be failing.
L1 oP → · Cooling unit replacement →
Fan Thermostat 640235 · Nordic Cooling Unit 6610
Won’t turn on at all
No lights at all means the 12V supply, the F1 fuse, the power board or the display.
Which power board?
Every 1210, and 1200s with serial 8981139 and above, use the OEM 628661. Older 1200s (serial 8981138 and below) use the Dinosaur 6212XX.
Good numbers to know
12V DC: 10.5–15.4 V · 120V AC: 108–132 V · Each AC heater: 58–68 Ω · Thermistor in ice: 30–32 kΩ · Electrode gap: 1/8″–3/16″ · LP pressure: 10.5–11.5″ w.c. · F1: 5A · F2: 8A AGC
Shop all 1200 / 1210 parts → · Quickly test your thermistor →
Still stuck? ask a tech with your model, serial number and the readings you got. We’ll confirm the part before you order.
Based on the Norcold 1200/1210 service manual, Section 3 fault codes and Section 9 diagnostics.