Bosch · Heat pump

n00-nCF Outdoor fan motor driver fault

Medium severity Bosch IDS LightBosch IDS Premium Connected

What the control is telling you

A fan motor driver fault code in the n range was reported.

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

Fan motor or driver fault

Test and repair steps

Record the exact n code.
Check the fan motor, its wiring and the driver board.

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

F41 High pressure sensor fault
F42 Low pressure sensor fault
H01 Drive chip communication fault
J00-JCF Compressor driver fault
o37 Low refrigerant in heating
P0 Control board / compressor IPM overheating
P1 High pressure protection
P4 High compressor discharge temperature

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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.