Why is the lamp is flickering, and LED display shows “E3” on my heater? (ST-45-KFA-E / ST-70T-KFA-E / ST-125T-KFA-E ST-175T-KFA-E / ST-215T-KFA-E)

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20 October 2023 08:48 Updated

If the Thermostat Switch has failed then replace the thermostat

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