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Bosch · Heat pump

P0 Control board / compressor IPM overheating

High severity Bosch IDS LightBosch IDS Premium Connected

What the control is telling you

The compressor power module temperature protection tripped (called control board overheat in the Premium Connected manual).

Applies to: Bosch IDS Light BOVA15-24/36/60 and IDS Premium Connected BOVA36-20/60-20 R-454B heat pump outdoor units

Likely causes

  • Thermal paste missing or poor
  • Loose IPM screws
  • Blocked heatsink air duct
  • Board fault

Test and repair steps

  1. Warning: Switch off power and wait 3 minutes before measuring resistance or touching boards.
  2. Check thermal paste coverage on the back of the board.
  3. Tighten IPM1 screws.
  4. Clean the control box heat sink air duct.
  5. Replace the outdoor control board if it recurs.

Models that show this code

5 models in Bosch IDS Light, Bosch IDS Premium Connected

BOVA15-24BOVA15-36BOVA15-60BOVA36-20BOVA60-20

Other codes on the same units

  • H01 Drive chip communication fault
  • J00-JCF Compressor driver fault
  • n00-nCF Outdoor fan motor driver fault
  • o37 Low refrigerant in heating
  • P1 High pressure protection
  • P4 High compressor discharge temperature
  • P5 Condenser coil temperature protection (cooling)
  • P11 High pressure protection (transducer)

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Source: Bosch IDS Light installation BTC 762003308 D (02.2025), Fault Code Table 23 and 17.12 Error Code Troubleshooting, p.42-59; Bosch IDS Premium Connected installation BTC 762003301 D (02.2025), Fault Code Table 22 and 18.12 Error Code Troubleshooting. 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.