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Midea · Mini-split

P7 IPM temperature sensor fault

Medium severity Midea DLCM(R/H)B multi-zone outdoor

What the control is telling you

Same fault as EC55. Shown on the 48K high heat model.

Applies to: DLCMHBH48EAK (48K high heat) only

Test and repair steps

  1. Safety kill power at the disconnect and wait for the inverter capacitors to discharge before touching boards or wiring.
  2. Check the sensor plug on the board and the wire for damage.
  3. Unplug the sensor and measure its resistance. T1-T4 sensors read about 10 kOhm at 77 F (25 C); the discharge sensor (T5/TP) about 54.9 kOhm at 77 F. Compare with the sensor resistance tables.
  4. Out of range or open/shorted replace the sensor. Sensor reads fine: replace the board it plugs into.

Models that show this code

7 models in Midea DLCM(R/H)B multi-zone outdoor

DLCMHBH24CAKDLCMHBH30DAKDLCMHBH36DAKDLCMHBH48EAKDLCMRBH18BAKDLCMRBH36DAKDLCMRBH48EAK

Other codes on the same units

  • P1 Over or under voltage protection
  • P2 Compressor top overheat (OLP)
  • P3 Low outdoor temperature cut-off in heating
  • P4 Compressor drive fault
  • PC00 Inverter module (IPM) protection
  • PC0A Condenser high temperature protection
  • PC0F PFC module protection
  • PC0L Outdoor temperature too low

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Source: DLCMRBH/DLCMHBH Multi-Zone Outdoor Service Manual (sold as Midea, Carrier and Viessmann Vitocal 200-S; Viessmann doc 6225551-03, 12/2024), Table 24 Outdoor Unit Error Display (48 High Heat only) p.27; diagnosis p.51. Summarized in our own words; check the original manual for your model.

Homeowner looking at this code? See what it means for you and when to call a technician.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.