Norcold N611, N621, N641

Norcold N611, N621, N641

YOUR FRIDGE: NORCOLD N611 / N621 / N641

Everything for the Norcold N611, N621 & N641

Fits N610, N611, N621, N622, N640 and N641, including IM (ice maker) versions. 6 cu. ft. two-door absorption fridges. Most parts are shared, but the power board depends on your model and serial.

✓ GUARANTEED FIT

Give us your model and serial number. If we say it fits and it doesn’t, we cover return shipping.

What’s wrong with your N611, N621 or N641?

Norcold 621742 Thermistor Not cooling / lockoutThermistor 621742 →Cheapest part to rule out first. Fits all N6XX models. Norcold 3361A Nordic Cooling Unit Cooling unit failedNordic Cooling Unit 3361A →Replaces 632307. Has a 45° heater well. If yours is 90°, add a new AC heater. Norcold 621957 Burner / Orifice Won’t light on propaneBurner / Orifice 621957 →Weak or yellow flame? Clean first, then replace. Norcold 61692222 Spark / Sense Electrode Clicks but no flameSpark / Sense Electrode 61692222 →Lights the burner and senses the flame. Norcold 638374 AC Heater Kit Works on propane, not electricAC Heater Kit 638374 →For cooling unit serial 11232008 and above. Older units use 621702. Norcold 628661 Power Board Dead board (newer serials)Power Board 628661 →OEM board. Check the serial ranges in the table below. Norcold 6212XX Dinosaur Board Dead board (older N621 / N641)Dinosaur Board 6212XX →Upgraded replacement for the original 16-pin board kits. Norcold 622390 Drip Tray Drain Hose Water under the fridgeDrip Tray Drain Hose 622390 →Carries defrost water outside. A cracked or loose hose leaks inside the cabinet.

Your serial number matters on these:

Part Newer Older
Power board, N611 / N610 628661 (SN 9056492 and above) 621991001 kit (below 9056492)
Power board, N621 / N622 628661 (SN 9126825 and above) Dinosaur 6212XX (older 16-pin board)
Power board, N641 / N640 628661 (SN 9044286 and above) Dinosaur 6212XX (older 16-pin board)
AC heater 638374 kit (cooling unit SN 11232008+) 621702 (cooling unit SN 11232007 and below)
Power board cover 628677 (post-2006) 618185 (pre-2006)

The model and serial number are on the label inside the fresh food compartment. Live parts diagrams: N611 · N621 · N641

Dark display or buttons that don’t respond? Norcold has discontinued every N6XX optical (display) board, so if that board has truly failed, a new refrigerator is the fix. Before you decide, run the checks in our optical board guide. A dark display is often a power or fuse problem, not the board. If you do need a new fridge, the Norcold N7XF keeps propane and electric, or go 12V compressor with the Norcold N8DC. Send us your model and we’ll confirm the fit for your opening.
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