Polar Refrigerator Error Code AC HE

AC HE on a Polar refrigerator indicates an AC heater fault, specific to N7LX and N8LX models. The code means the control board has detected that the AC heater circuit is open, which can result from the heater being unplugged, a failed heater element, or a wiring issue. The heater plays a role in preventing condensation and frost buildup, so this fault should be addressed promptly.

Turning the refrigerator OFF and back ON is the recommended first reset step and may clear the code if the fault was caused by a transient electrical event. However, if the underlying issue is a failed heater element, a disconnected plug, or a wiring problem, the error will return after the reset. A persistent AC HE code requires physical inspection and diagnosis of the heater circuit.

Repair costs depend on the root cause. If the fix is simply reseating a disconnected plug, there may be no parts cost beyond a service call fee, which can range from roughly 75 to 150 dollars. If the heater element itself has failed and needs replacement, parts plus labor typically run in the range of 150 to 350 dollars depending on parts availability and local labor rates. A control board replacement, if needed, would be at the higher end of that range or beyond.

Some basic steps can be performed by a knowledgeable DIYer, including confirming the supply voltage is between 108 and 132 VAC, performing a power cycle reset, and visually inspecting heater connections for loose plugs. However, testing the heater element for continuity and replacing components involves working with AC electrical circuits, which carries shock risk and is best handled by a qualified technician.

The fault itself indicates a heater that is not operating, rather than one that is overheating, so the immediate risk profile is low. However, because the AC heater helps manage condensation and frost in the unit, leaving the fault unresolved can affect the refrigerator performance over time. Any repair involving the AC heater circuit should be performed with the unit unplugged to avoid electrical shock hazard.