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Carrier Error Code EH0A: Indoor EEPROM error (Mini-Split)

Updated · by Aurora Star Tech Inc.

Carrier error code EH0A on a mini-split means: Indoor EEPROM error. It is also called Carrier diagnostic code EH0A.

High severityMini-SplitCarrier DLFSHB high wall indoor

Homeowner? What Carrier code EH0A means for you

Call a technician Your ductless mini-split is reporting: Indoor EEPROM error. The ductless mini-split 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 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 EH0A mean?

Same as EH00: indoor EEPROM chip not answering.

Applies to: DLFSHBH high wall indoor units 09-24K (Midea / Carrier / Viessmann) on DLC multi-zone or single-zone outdoor units

Common causes of Carrier code EH0A

  • Bad indoor PCB
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 EH0A

DLFSHBH09XAKDLFSHBH12XAJDLFSHBH12XAKDLFSHBH18XAKDLFSHBH24XAK

Other Carrier Mini-Split codes

CodeMeaning
EC54Discharge temperature sensor (TP/T5) fault
EC55IPM temperature sensor fault
EC56Indoor coil outlet sensor (T2B) fault
EC57Refrigerant pipe sensor fault
EC71Outdoor fan motor over-current
EC72Outdoor fan motor phase loss
EH0bIndoor PCB to display board communication error
EH00Indoor EEPROM error
EH02Zero-crossing signal error
EH03Indoor fan speed out of range
EH30Indoor external fan low voltage
EH31Indoor external fan over voltage

All Carrier Mini-Split error codes →

Carrier code EH0A: homeowner questions

What does Carrier code EH0A mean?

Indoor EEPROM error. Same as EH00: indoor EEPROM chip not answering.

Is it safe to keep using my ductless mini-split with code EH0A?

It depends on the cause. The ductless mini-split 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 Carrier code EH0A myself?

You can try one reset (power off for 30 seconds, then on). If Carrier code EH0A comes back, the cause is still there and a licensed technician should check it.

Who can fix Carrier code EH0A 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: Carrier MS-DLFSHB-01 High Wall Ductless Service Manual (04/2021), Table 9 p.17, p.25. 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

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