Troubleshooting and maintenance
Error code English
Error code
F1
F2
F3
F0
F4
Battery symbol
( )
Problem Solution
Low battery Replace batteries within 1 week
Slow valve operation
Check the installation and heating valve
The stroke is too long
Check the fastening of TRV
The stroke is too short
Check the heating valve
Temperature sensor abnormality
Contact after-sales staff
Running out of battery
Replace batteries immediately
F5
Valve not detected
To check if the valve is installed
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