Blaupunkt
Reversing Valve / Mode Control Failure
Indoor unit blows warm air in cooling mode or cool air in heating mode (heat pump models).
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Stuck reversing valve, Faulty reversing valve coil, Incorrect wiring to 4-way valve, Low refrigerant charge
How to Fix / Troubleshooting
Safety first: Turn off power before accessing the outdoor unit.
Steps:
- Mode verification: Confirm the remote is set to the correct mode (Cool or Heat) and that the Blaupunkt unit acknowledges the change.
- Listen for valve shift: When switching between heating and cooling, you should hear a distinct whooshing sound from the outdoor unit as the reversing valve shifts. Absence may indicate a stuck valve or no coil energization.
- Check coil wiring: Inspect the reversing valve coil wiring and connector on the outdoor PCB.
- Professional service: Reversing valve replacement and refrigerant handling must be done by a licensed technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Reversing Valve / Reversing Valve Coil
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