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Viessmann Error Code ODU P5: Condenser high temperature (outdoor board) (Mini-Split)

Updated · by Aurora Star Tech Inc.

Viessmann error code ODU P5 on a mini-split means: Condenser high temperature (outdoor board). It is also called Viessmann diagnostic code ODU P5.

Medium severityMini-SplitViessmann Vitocal 200-S DLCM(R/H)B multi-zone outdoor

Homeowner? What Viessmann code ODU P5 means for you

Check, then call Your ductless mini-split is reporting: Condenser high temperature (outdoor board). This is often caused by something simple. Try the safe checks below; if the code returns, book a service call before it turns into a no-heat or no-hot-water emergency.

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.
  • Open the front cover of the indoor unit and rinse the washable filters if they are dusty; let them dry before putting them back.
  • Keep the outdoor unit clear of snow, ice and leaves.
  • Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.

Call (647) 657-2977Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Viessmann error code ODU P5 mean?

Outdoor board display. Indoor shows PC0A.

Applies to: DLCMRBH / DLCMHBH multi-zone outdoor units 18-48K (Midea, Carrier, Viessmann Vitocal 200-S)

Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

Viessmann models that use code ODU P5

DLCMHBH24CAKDLCMHBH30DAKDLCMHBH36DAKDLCMHBH48EAKDLCMRBH18BAKDLCMRBH36DAKDLCMRBH48EAK

Other Viessmann Mini-Split codes

CodeMeaning
ODU LPLow outdoor temperature protection (outdoor board)
ODU P0Compressor top overheat (outdoor board)
ODU P1High pressure protection (outdoor board)
ODU P2Low pressure protection (outdoor board)
ODU P3Current overload (outdoor board)
ODU P4Discharge temperature protection (outdoor board)
ODU P6Inverter module (IPM) fault (outdoor board)
ODU PHCompressor pre-heat
ODU ROOil return cycle
OffTimer off
OnTimer on
P0Inverter module (IPM) fault

All Viessmann Mini-Split error codes →

Viessmann code ODU P5: homeowner questions

What does Viessmann code ODU P5 mean?

Condenser high temperature (outdoor board). Outdoor board display. Indoor shows PC0A.

Is it safe to keep using my ductless mini-split with code ODU P5?

It depends on the cause. This is often caused by something simple. Try the safe checks below; if the code returns, book a service call before it turns into a no-heat or no-hot-water emergency.

Can I reset Viessmann code ODU P5 myself?

You can try one reset (power off for 30 seconds, then on). If Viessmann code ODU P5 comes back, the cause is still there and a licensed technician should check it.

Who can fix Viessmann code ODU P5 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

Source: DLCMRBH/DLCMHBH Multi-Zone Outdoor Service Manual (sold as Midea, Carrier and Viessmann Vitocal 200-S; Viessmann doc 6225551-03, 12/2024), Table 27 Outdoor Unit Digital Codes p.32; diagnosis p.67. 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.

Emergency HVAC Service

647-657-2977