Viessmann Error Code PC00: Inverter module (IPM) protection (Mini-Split)
Viessmann error code PC00 on a mini-split means: Inverter module (IPM) protection. It is also called Viessmann diagnostic code PC00.
Homeowner? What Viessmann code PC00 means for you
Stop and call Your ductless mini-split is reporting: Inverter module (IPM) protection. This code is a safety shutdown. Turn the ductless mini-split off and call a licensed technician. Do not keep resetting it. If you smell gas, leave the house and call your gas utility or 911 from outside.
Safe things you can check yourself
- Check the remote: fresh batteries and the right mode (Cool, Heat or Auto).
- Check the breaker and the outdoor disconnect; both should be ON.
Call (647) 657-2977Book a service call
Licensed technicians serving Vaughan, Toronto and the GTA.
What does Viessmann error code PC00 mean?
The drive chip got a bad signal back from the IPM, so the unit shut down. Outdoor board shows P6; 48K HH shows P0.
Applies to: DLCM(R/H)B multi-zone outdoor units with DLFSHBH high wall indoor units (Midea, Carrier, Viessmann)
Common causes of Viessmann code PC00
- Wiring
- Bad IPM
- Outdoor fan problem
A technician checks these and 2 other possible causes on site before replacing any part.
Viessmann models that use code PC00
DLCMHBH24CAKDLCMHBH30DAKDLCMHBH36DAKDLCMHBH48EAKDLCMRBH18BAKDLCMRBH36DAKDLCMRBH48EAKDLFSHBH09XAKDLFSHBH12XAJDLFSHBH12XAKDLFSHBH18XAKDLFSHBH24XAK
Other Viessmann Mini-Split codes
All Viessmann Mini-Split error codes →
Viessmann code PC00: homeowner questions
What does Viessmann code PC00 mean?
Inverter module (IPM) protection. The drive chip got a bad signal back from the IPM, so the unit shut down. Outdoor board shows P6; 48K HH shows P0.
Is it safe to keep using my ductless mini-split with code PC00?
No. Code PC00 is a safety shutdown, so keep the ductless mini-split off until a licensed technician has checked it.
Can I reset Viessmann code PC00 myself?
Do not keep resetting it. Repeated resets can hide a safety problem; a licensed technician needs to find the cause.
Who can fix Viessmann code PC00 near me?
Aurora Star Tech Inc. repairs Viessmann ductless mini-splits in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.
Homeowner help: AC Running But Not Cooling: What to Check · Heat Pump Not Heating or Blowing Cold Air
Troubleshooting guides
- Indoor unit leaking water All brands · Mini-Split
- Poor capacity / high head All brands · Mini-Split
- Water leaking All brands · Mini-Split
- Discharge the inverter capacitors before service Viessmann · Mini-Split
- Display shows a strange code or does not answer the remote - DLFSHB indoor Viessmann · Mini-Split
- Multi-zone: one room heats, another will not cool - DLC multi-zone Viessmann · Mini-Split
- Read live data with the outdoor check button (SW1) Viessmann · Mini-Split
- Run the automatic wiring / piping correction Viessmann · Mini-Split
Source: DLCMRBH/DLCMHBH Multi-Zone Outdoor Service Manual (sold as Midea, Carrier and Viessmann Vitocal 200-S; Viessmann doc 6225551-03, 12/2024), Table 23 Outdoor Unit Error Display p.26; diagnosis p.41, 68; Carrier MS-DLFSHB-01 High Wall Ductless Service Manual (04/2021), Table 9 p.17, p.34. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.