Heat Controller REG-123M User Manual (English)

Questions and Answers:

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Crystal JohnsonAug 2, 2025
Why my Heat Controller Air Conditioner does not start?
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  Mary GibsonAug 2, 2025
  Your Heat Controller Air Conditioner might not start due to several reasons: * The wall plug may be disconnected. Ensure it's firmly pushed into the wall outlet. * A house fuse might be blown, or the circuit breaker tripped. Replace the fuse with a time delay type or reset the circuit breaker. * The Plug Current Device may have tripped. Press the RESET button. * The power might be OFF. Turn the power ON.
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Sharon WrightAug 12, 2025
What to do if my Heat Controller Air Conditioner is cooling, but the room is too warm and ice is forming?
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  Henry HarrisAug 12, 2025
  If your Heat Controller Air Conditioner is cooling, but the room remains too warm and ice is forming on the cooling coil, it could be due to a few reasons: * The outdoor temperature may be below 64°F (18°C). Set the unit to FAN ONLY mode to defrost the coil. * The air filter might be dirty. Clean the filter. Also, set to FAN ONLY mode to defrost. * The thermostat may be set too cold for night-time cooling. Set the unit to FAN ONLY mode to defrost the coil, then set the temperature to a higher setting.
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aharrisAug 22, 2025
How to fix Heat Controller REG-123M when air from unit does not feel cold enough?
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  Lisa JosephAug 22, 2025
  If the air from your Heat Controller Air Conditioner doesn't feel cold enough, consider the following: * If the room temperature is below 62°F (17°C), cooling may not occur until the room temperature rises above this level. * The temperature sensor behind the air filter element might be touching the cold coil. Keep it away from the cold coil. * You may need to set the unit to a lower temperature. * If the compressor stopped when changing modes, wait for 3 minutes after setting it to the COOL mode.