U5

Malfunction of Transmission Between Main and Inverter PCB

Description

There is a malfunction in transmission between main and inverter PCB.

Appliance Error Codes Details

Error Code
U5
Error Name
Malfunction of Transmission Between Main and Inverter PCB
Appliance Type
air_conditioner
Brand
Daikin
Severity
high

Additional Troubleshooting

1. Reset the system 2. Contact service for PCB check

Was this helpful?

Loading...

Send Feedback

Found an error or have a suggestion? We respond within 48 hours.

Fact-checking completed

Verified by: Pavel Volkov
Created:
Last updated:
Information verified against official sources

Official Sources

Official Manufacturer Service Manuals

Service manuals and technical documentation from appliance manufacturers

Original equipment manufacturers official documentation

Industry Standards Organizations

International standards for electrical appliances and error codes

International Electrotechnical Commission standards

Visit

Learn More

Dive deeper with our comprehensive developer guides for Appliance Error Codes

Appliance Error Codes: Troubleshooting Guide

Fix your home appliances with our comprehensive troubleshooting guide. Learn to identify error codes...

Pavel Volkov Aug 30, 2025
View all guides

Related Codes

More codes of the same type

U2

Drain Error

Water is not draining properly from the dishwasher.

View details →

U3

Heating Element Error

The heating element is not functioning properly.

View details →

U4

Malfunction of Transmission Between Control and Inverter PCB

There is a malfunction in transmission between control and inverter PCB.

View details →

U4

Spray Arm Error

The spray arm is blocked or not functioning properly.

View details →

U6

Water Temperature Error

The water temperature is not reaching the required level.

View details →

U6

Compressor Overcurrent

The compressor is drawing too much current.

View details →

U8

Malfunction of Outdoor Temperature Sensor

The outdoor temperature sensor is malfunctioning.

View details →

U9

Malfunction of Discharge Pipe Temperature Sensor

The discharge pipe temperature sensor is malfunctioning.

View details →
Back to Appliance Error Codes