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Panasonic Aquarea T-CAP R32 fault H38

Brand code not matching

Heat pump

What it means

The indoor and outdoor unit brand codes do not match, indicating a mismatch in unit compatibility (e.g. non-Panasonic unit paired with Panasonic unit) or a faulty outdoor PCB.

Likely causes

  1. Mismatched indoor/outdoor brand code
  2. Indoor and outdoor brand code not match

Where to start

  1. Check indoor and outdoor brand code configuration
  2. Switch off power before removing/connecting components
  3. Check the brand of indoor and outdoor unit - confirm both are Panasonic - if NO, use only Panasonic units / change to Panasonic unit

The full answer, free

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

Other Panasonic Aquarea T-CAP R32 fault codes