HVACopediaViessmann · Mini-split
PC41 Current input detection protection
What the control is telling you
Input current detection fault. No flow chart in the manual.
Applies to: DLFSHBH high wall indoor units 09-24K (Midea / Carrier / Viessmann) on DLC multi-zone or single-zone outdoor units
Models that show this code
5 models in Viessmann DLFSHB high wall indoor
Other codes on the same units
- PC11 AC supply voltage protection (over voltage)
- PC12 DC bus high voltage / 341 MCE error
- PC40 Main chip to compressor drive chip communication error
- PC42 Compressor start failure
- PC43 Compressor phase loss
- PC44 Zero speed protection
- PC45 Compressor drive chip (IR / 341 PWM) failure
- PC46 Compressor speed out of control
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Source: Carrier MS-DLFSHB-01 High Wall Ductless Service Manual (04/2021), Table 9 p.17. 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.