What does error code E21 mean on my W'eau WMI-004 Heat Pump?
Error code E21 on your W'eau Heat Pump indicates a temperature sensor open circuit or short circuit. Check the sensor wiring. If the problem persists, replace the temperature sensor.
What to do if my W'eau Heat Pump LED wire controller is short running?
If your W'eau Heat Pump LED wire controller is short running, it could be due to several reasons: 1. The fan is not running. 2. Insufficient air ventilation. 3. Insufficient refrigerant. Check the cable connections between the motor and fan, and replace if necessary. Ensure the heat pump unit has good air ventilation by removing any obstacles. If the issue persists, replace or repair the heat pump unit.
What does error code E12 mean on my W'eau WMI-004 Heat Pump?
Error code E12 on your W'eau Heat Pump indicates insufficient gas in the system. Check for gas leakage in the piping system.
What to do if my W'eau WMI-004 Heat Pump LED wire controller has water stains?
If your W'eau Heat Pump LED wire controller has water stains, it could be due to concreting or water leakage. For water leakage, carefully check the titanium heat exchanger for any defects.
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