Central Air Conditioner Thermostat
24
No. Code Description
1 F5 Indoor ambient temperature sensor failure
7 Failure handling
The product maintenance is performed by qualied technicians only.
Status Maintenance approaches
Start-up failure
1. Check if L/N lines work well and wiring is
safe.
2. Check if ON/OFF key is eective.
3. Try to replace the main control panel rst. If
it does not work, replace the power panel.
Unrecognizable code on the LCD
Loosen the xing screws as the panel is not
tted properly.
Blown fuses
1. Check if wiring is correct.
2. Replace the power panel.
Abnormal output with a normal
display
Try to replace the main control panel rst. If it
does not work, replace the power panel.