Polar Refrigerator Error Code Flash 1

Flash 1 on a Polar refrigerator indicates an AC heater fault, specifically that the AC heater is either not plugged in or has failed open. The control board monitors the heater circuit and triggers this code when it detects no current flow through the heater. This is a wiring or component-level fault, not a general refrigeration system failure.

A Flash 1 fault means the AC heater is not functioning, which can lead to condensation buildup or drain line freezing over time depending on the heater's role in your unit. While the core refrigeration system may still operate, running the unit for an extended period without a working heater can cause secondary issues. It is best to address the fault promptly rather than continuing to operate the refrigerator in this condition.

If the fault is only a loose or disconnected plug, there may be no parts cost and the repair can be completed quickly during a service call. If the heater element has failed and needs replacement, parts and labor costs typically range from around $80 to $250 or more depending on the specific heater component and local labor rates. Diagnosing the exact cause first will help clarify whether you need parts or just a wiring correction.

Start by confirming that the AC supply voltage at the heater is within the 108-132 VAC range using a multimeter. Then inspect all heater wiring connectors for loose, damaged, or corroded connections and reseat any that are not firmly plugged in. If wiring checks out and voltage is correct, test the heater element for continuity. A heater element with no continuity has failed open and must be replaced.

A simple power reset will not permanently clear the Flash 1 code if the underlying fault is still present. The control board will re-detect the open heater circuit and re-trigger the fault after the reset. The error will only stay cleared once the disconnected plug is reseated or the failed heater component is replaced.