Error CH05 may take place by abnormal communication between the indoor unit and the outdoor unit.
The second LED indicates error at 10’s digit.
Ex) After the second LED blinks 3 times with certain interval, if the first LED blinks 5 times with certain interval, then it means a CH53 error.
Try this
Does CH53 occur immediately after installing a new product, or installing a used product at other place?
CH53 code is a function detecting abnormal communication between the indoor unit and the outdoor unit of an
inverter air-conditioner.
If it occurs right after the product is installed, then ask the installation technician to check if the
communication cables are wired properly with no misconnections?
Does CH53 occur during running the product, not immediately after installing?
An error code that occurs in the product may be a temporary error due to unstable electricity supply or other electrical factors. Turn the power off or trip the circuit breaker for the product, and then reset the breaker about 5 minutes later.
If same symptom persists after power reset, have it checked by a service technician.
This guide was created for all models, so the images or content may be different from your product.
