If your Norcold absorption refrigerator is failing to light on LP gas, running a fault code, or cycling off unexpectedly, the ignition control circuit board is one of the most common root causes. This is the direct OEM-style replacement board for Norcold 600 and 6000 series units, cross-referenced as NBK part number 20362K. Drop-in fitment, no rewiring required.
Norcold absorption refrigerators use a dedicated ignition control module to manage the gas ignition sequence, monitor the flame sensor, and shut the burner down safely if ignition fails. When this board fails, the refrigerator may refuse to light on LP, display a fault code (such as an "no co" or persistent "check" alert on some models), or cycle repeatedly without establishing a flame.
Replacing the board is typically a straightforward DIY repair accessible through the exterior vent panel on most coach installations. The board mounts to the burner assembly housing and connects via keyed plugs -- no soldering or custom wiring needed on most affected models.
Fits 18 confirmed Norcold model numbers across the 600 and 6000 series, including the 876EG2 and 876EG3 units.
Designed to match the original Norcold board specification. Plug connectors, mounting points, and logic match factory configuration.
Catalogued as NBK part number 20362K, making it easy to confirm you have the correct replacement before ordering.
Backed by a 90-day limited warranty against defects, standard for OEM-replacement refrigerator electronics.
In a Norcold absorption refrigerator, the ignition control circuit board manages the following functions on the LP gas side of operation:
A failed board can mimic other symptoms -- including what appears to be a gas valve fault or a thermocouple failure -- so confirming the board is faulty before replacing other components is recommended. Common diagnostic signs pointing to the ignition board specifically include: spark activity absent at the electrode, spark present but no gas valve opening, or repeated lockout with no flame even when gas supply is confirmed good.
Part 61717037 / NBK 20362K fits the following Norcold model numbers:
Always verify against your refrigerator's serial number tag before ordering. The model tag is typically located inside the fresh food compartment on the upper left wall.
On most RV installations, the ignition control board is accessible from the exterior refrigerator vent panel (lower vent). Remove the vent cover, locate the burner assembly, and the control board mounts nearby on the housing. Disconnect shore power and close the LP supply valve before beginning work. Allow the unit to cool completely if it has been running.
Any repair involving LP gas components should be performed with the LP supply valve closed at the tank. After installation, check all gas connections with an approved leak-detection solution before returning the refrigerator to service. Do not use an open flame to check for leaks.