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Trianco High Temperature Air Source Heat Pump R290 fault E103

Fan motor overload protection

Heat pump

What it means

Fan motor overload protection triggered.

Likely causes

  1. Loose screws
  2. Fan blade or motor issue
  3. Compressor Issue
  4. Touching components
  5. EEV step is not suitable
  6. Refrigerant amount incorrect
  7. Parameter Issue

Where to start

  1. Check if the fan motor is running
  2. If the current is more than 1A, it means the motor has a problem and needs to be replaced
  3. If the current is less than 1A, it means the motor control module has a problem and needs to be replaced

The full answer, free

  • 8 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 35), 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 Trianco manual for the High Temperature Air Source Heat Pump R290. Check the model on the data plate before you order parts.

Other Trianco High Temperature Air Source Heat Pump R290 fault codes