Midea Air Conditioner Displays CP on the wall control

I recently encountered an issue with the main board of my Midea MHG-48HWFN1-Q indoor unit. The main board showed no signs of activity (no flashing light), although the daughter board seemed to be functioning normally (it was flashing).

I reached out to Midea for assistance. After some persistent follow-up, they provided the necessary part information and the updated part number.

The part was dispatched via Australia Post Express, but it took over a week to arrive. Given that it’s summer, it felt like a particularly long week!

Upon receiving the part, I replaced the old one, ensuring to switch off the power first. However, when I powered it back on, I was greeted by a ‘CP’ error on the wall controller.

After some troubleshooting, I noticed that the CN23 connector was jumpered on the old board. Once I replicated this on the new board, the unit began operating normally.

I hope this information proves helpful if you’re dealing with a ‘CP’ error on your Midea air conditioner. 😎