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Midea R32 M thermal Arctic Mono fault EB

Solar board sensor tsolar error

Heat pump

What it means

Solar board sensor Tsolar error (serial number 12). Displayed on user interface and hydronic system main PCB.

Likely causes

  1. Sensor Tsolar disconnected, sensor malfunction, wiring break, PCB connection issue
  2. Temperature sensor not connected properly or has malfunctioned. Damaged hydronic system main PCB.
  3. Sensor Tsolar fault
  4. Sensor wiring fault

Where to start

  1. Check sensor Tsolar connection, measure sensor resistance, verify wiring continuity, test sensor response
  2. Identify sensor type based on fault code
  3. Locate corresponding port on hydronic system main PCB

The full answer, free

  • 1 more check in order
  • The manual page for this fault (page 66), 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 Midea manual for the R32 M thermal Arctic Mono. Check the model on the data plate before you order parts.

Other Midea R32 M thermal Arctic Mono fault codes