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Carrier Error Code P7: IPM temperature sensor fault (Mini-Split)

Updated · by Aurora Star Tech Inc.

Carrier error code P7 on a mini-split means: IPM temperature sensor fault. It is also called Carrier diagnostic code P7.

Medium severityMini-SplitCarrier DLCM(R/H)B multi-zone outdoor

Homeowner? What Carrier code P7 means for you

Check, then call Your ductless mini-split is reporting: IPM temperature sensor fault. 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 Carrier error code P7 mean?

Same fault as EC55. Shown on the 48K high heat model.

Applies to: DLCMHBH48EAK (48K high heat) only

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.

Carrier models that use code P7

DLCMHBH24CAKDLCMHBH30DAKDLCMHBH36DAKDLCMHBH48EAKDLCMRBH18BAKDLCMRBH36DAKDLCMRBH48EAK

Other Carrier Mini-Split codes

CodeMeaning
OnTimer on
P0Inverter module (IPM) fault
P1Over or under voltage protection
P2Compressor top overheat (OLP)
P3Low outdoor temperature cut-off in heating
P4Compressor drive fault
PC0ACondenser high temperature protection
PC0FPFC module protection
PC0LOutdoor temperature too low
PC00Inverter module (IPM) protection
PC02Compressor top overheat (OLP)
PC03Pressure protection

All Carrier Mini-Split error codes →

Carrier code P7: homeowner questions

What does Carrier code P7 mean?

IPM temperature sensor fault. Same fault as EC55. Shown on the 48K high heat model.

Is it safe to keep using my ductless mini-split with code P7?

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 Carrier code P7 myself?

You can try one reset (power off for 30 seconds, then on). If Carrier code P7 comes back, the cause is still there and a licensed technician should check it.

Who can fix Carrier code P7 near me?

Aurora Star Tech Inc. repairs Carrier 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 24 Outdoor Unit Error Display (48 High Heat only) p.27; diagnosis p.51. 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