Panasonic Aquarea T-CAP R32 fault H15

Compressor tank temperature sensor abnormality

Heat pump

What it means

During startup and operation of cooling and heating, the temperatures detected by the compressor tank temperature sensor are used to determine sensor error. The fault is judged if the abnormality continues for 5 seconds.

Likely causes

  1. Compressor temperature sensor defective or disconnected
  2. Faulty connector connection.
  3. Faulty sensor.
  4. Faulty outdoor unit PCB (main).

Where to start

  1. Check the CN-TANK connector connection: Turn OFF the power, check the connector connection.
  2. Check the CN-TANK connector connection for poor contact
  3. Measure resistance of compressor tank temperature sensor after disconnecting from outdoor unit PCB (main).

The full answer, free

  • 18 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 167), 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 Panasonic manual for the Aquarea T-CAP R32. Check the model on the data plate before you order parts.

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