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Midea Air Conditioner EH 0b Error Code
Indoor main board and display aren't talking on Midea air conditioners.
MideaAll Midea air conditioner codes
The display on the front of the indoor unit is a separate small board connected to the main control board by a cable. EH 0b appears when the two stop exchanging data, usually from a loose connector or a failed display board.
Compatible models
Midea mini-split wall units. Old units show E6 or Eb and newer ones EH 0b; there's no published model list.
Also shown as
Earlier models display E6 or Eb instead.
Difficulty
Try the basic checks, but the usual fix is a technician's job.
Not sure you are reading the code right? See how to read Midea air conditioner codes.
How to fix Midea EH 0b
Restart once
A connector that has worked slightly loose can sometimes recover after a full power-off at the breaker.
Try the remote
If the unit still heats or cools when you send commands from the remote, tell the technician. It helps narrow the fault to the display side.
When to call a technician
If the code returns, a technician needs to open the indoor unit to reseat or replace the display cable or board.
Parts linked to EH 0b
These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.
- display board
- indoor main PCB
Order parts by your full model number so they fit.
Frequently asked questions
Which Midea models show the EH 0b code?
Midea mini-split wall units. Old units show E6 or Eb and newer ones EH 0b; there's no published model list.
Can I fix Midea EH 0b myself?
Only the basic checks. You can safely try the steps above, but EH 0b usually points to a part or fault that needs a technician.
Other Midea air conditioner codes
- EL 01Indoor and outdoor units have lost contact
- EH 00Indoor board memory (EEPROM) fault
- EH 03Indoor fan speed out of range
- EH 60Room temperature sensor fault
- EH 61Indoor coil sensor fault
- EL 0CPossible refrigerant leak detected
- EC 07Outdoor fan speed out of control
- EC 53Outdoor air temperature sensor fault
- EC 52Outdoor coil sensor fault
- EC 54Compressor discharge sensor fault
- PC 00Inverter power module (IPM) protection
- PC 01Supply voltage too high or too low
- PC 02Compressor or power module overheating
- PC 04Inverter compressor drive error
- PC 08Over-current protection
- PC 0LToo cold outside to run
- P1Portable AC water tank is full
- E1Portable AC room temperature sensor fault
- E2Portable AC evaporator sensor fault
- E4Portable AC display panel communication fault
- ASWindow AC room temperature sensor fault
Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.