Daikin UCQ0060, Installation Operation & Maintenance

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10.0 ERROR CODE DISPLAY
Backlight colour will turn to red when there is any system failure. EER light will turn on and error display section
will show the relevant error code as follow:
Manual reset: When there is failure occurred, press MENU and key for 3 seconds to clear the errors.
Error code Remarks
1 Phase failure [manual reset]
2 Indoor fan failure [manual reset]
3 Flow switch failure [manual reset]
4 Water pump failure [manual reset]
5 Comp 1 high pressure or overload relay tripped [manual reset]
6 Comp 1 low pressure [manual reset]
7 Comp 2 high pressure or overload relay tripped [manual reset]
8 Comp 2 low pressure [manual reset]
9 Comp 3 high pressure or overload relay tripped [manual reset]
10 Comp 3 low pressure [manual reset]
11 Comp 4 high pressure or overload relay tripped [manual reset]
12 Comp 4 low pressure [manual reset]
13 Heater 1 failure [manual reset]
14 Heater 2 failure [manual reset]
15 Heater 3 failure [manual reset]
16 Room sensor failure [auto reset]
17 Inlet water sensor failure [auto reset]
18 Outlet water sensor failure [auto reset]
19 Indoor coil 1 sensor failure [auto reset]
20 Indoor coil 2 sensor failure [auto reset]
21 Indoor coil 3 sensor failure [auto reset]
22 Indoor coil 4 sensor failure [auto reset]
23 Water temp too low [manual reset or off system reset]
24 Temp differential failure [manual reset or off system reset]
25 Indoor coil 1 anti freeze[auto reset]
26 Indoor coil 2 anti freeze[auto reset]
27 Indoor coil 3 anti freeze[auto reset]
28 Indoor coil 4 anti freeze[auto reset]