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Samsung Heat pump fault E915

DC fan non-operating

Heat pump

What it means

Outdoor unit DC fan motor is not operating

Likely causes

  1. DC fan motor power supply failure
  2. DC fan motor winding failure
  3. Fan motor connector disconnected
  4. Fan motor bearing seized
  5. Inverter PCB fault

Where to start

  1. Check DC fan motor connector for loose connections
  2. Measure voltage at fan motor terminals
  3. Inspect fan motor for mechanical obstruction

The full answer, free

  • 5 more checks in order
  • The readings and component tests from the manual
  • How to put it right, step by step
  • The manual page for this fault (page 85), right under the answer
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Safety: Isolate the outdoor unit and any backup heater, and give the inverter capacitors time to discharge before you open the electrics. Anything on the refrigerant circuit needs F-gas certification.

From the Samsung manual for the Heat pump. Check the model on the data plate before you order parts.

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