Midea Error Code PC12: DC bus high voltage protection / 341 MCE error (Heat Pump)
Midea error code PC12 on a heat pump means: DC bus high voltage protection / 341 MCE error. It is also called Midea diagnostic code PC12.
Homeowner? What Midea code PC12 means for you
Call a technician Your heat pump is reporting: DC bus high voltage protection / 341 MCE error. The heat pump has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.
Safe things you can check yourself
- Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
- Check both breakers and the outdoor disconnect box beside the outdoor unit; all should be ON.
- Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
- In winter, keep snow and ice off and away from the outdoor unit. A short defrost cycle with steam is normal.
- 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 Midea error code PC12 mean?
DC bus high voltage protection or a 341 MCE (motor control chip) error on the outdoor main board.
Applies to: DLCURAH18-60 AAK/ABK single-zone heat pump outdoor units (18K-60K, regular and High Heat)
Common causes of Midea code PC12
- Supply voltage high or unstable
- Outdoor main board fault
Midea models that use code PC12
DLCURAH18AAKDLCURAH18ABKDLCURAH24AAKDLCURAH24ABKDLCURAH30AAKDLCURAH30ABKDLCURAH36AAKDLCURAH36ABKDLCURAH48AAKDLCURAH48ABKDLCURAH60AAKDLCURAH60ABK
Other Midea Heat Pump codes
All Midea Heat Pump error codes →
Midea code PC12: homeowner questions
What does Midea code PC12 mean?
DC bus high voltage protection / 341 MCE error. DC bus high voltage protection or a 341 MCE (motor control chip) error on the outdoor main board.
Is it safe to keep using my heat pump with code PC12?
It depends on the cause. The heat pump has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.
Can I reset Midea code PC12 myself?
You can try one reset (power off for 30 seconds, then on). If Midea code PC12 comes back, the cause is still there and a licensed technician should check it.
Who can fix Midea code PC12 near me?
Aurora Star Tech Inc. repairs Midea heat pumps 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
Source: Midea/Carrier DLCURA Installation Instructions (Catalog DLCURA-03SI), Table 11 Outdoor Unit Diagnostic Codes, p.19. 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.