Samsung Heat pump fault E914
Incorrect thermostat connection
Heat pumpWhat it means
Thermostat wiring or connection is incorrect or not properly configured
Likely causes
- Thermostat connector not fully seated
- Thermostat wiring reversed or incorrect
- Thermostat connector pins damaged
- Thermostat not compatible with system
Where to start
- Verify thermostat connector is fully inserted
- Check thermostat wiring against installation diagram
- Inspect connector pins for damage or corrosion
The full answer, free
- 4 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
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.
Other Samsung Heat pump fault codes
- E904Water tank sensor short/open
- E906Outdoor EVA in sensor error
- E907Pipe rupture protection error
- E910Water temperature sensor detached
- E911Minimum water flow rate not met
- E912Flow switch close error
- E913Flow switch error detected six times (re-operation impossible)
- E915DC fan non-operating
- E916Mixing sensor short/open