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Samsung Heat pump fault E108

Setting address duplicate error

Heat pump

What it means

Duplicate address setting detected between outdoor unit and hydro unit.

Likely causes

  1. Duplicate address configuration on outdoor unit or hydro unit
  2. Loose connections
  3. Damaged wiring
  4. Corrosion at terminals

Where to start

  1. Verify continuity between F1 and F2 terminals
  2. Check for visible damage to wiring
  3. Inspect connectors for corrosion

The full answer, free

  • The readings and component tests from the manual
  • How to put it right, step by step
  • The manual page for this fault (page 83), 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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