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Samsung Gen 6 fault E912

Emergency stop

Heat pump

What it means

Emergency stop related to circulation pump operation and flow sensor installation requirements.

Likely causes

  1. Circulation pumps operating incorrectly
  2. Flow sensor not installed on horizontal pipework
  3. Insufficient straight horizontal pipework each side of flow sensor
  4. Heating not enabled at Zone level preventing heat pump detecting run signal

Where to start

  1. Check circulation pumps are not operating.
  2. Check flow sensor is installed on horizontal pipework.
  3. Ensure 150mm of horizontal pipework each side of flow sensor.

The full answer, free

  • 22 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 55), 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 Gen 6. Check the model on the data plate before you order parts.

Other Samsung Gen 6 fault codes