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DC Inverter Multi
VRF Service Manual
2�5 Temperature sensor Trouble
1) Outdoor ambient temperature sensor error
Error display on hand controller: F4
Outdoor units mainboard indicator: led4: dark; led3: dark; led2: dark; led1: dark
Indoor units mainboard indicators:
Patio indoor units: red led: blink:red led:blink; green led:dark; yellow led:dark
FY wall-mounting motor: red led:blink; yellow led:dark
New FY wall-mounting motor: red led:blink; green led:dark; yellow led:dark
Hanging indoor units: red led:blink; green led:dark; yellow led:dark
2) Outdoor coil pipe inlet sensor trouble
Error display on hand controller: F5
Outdoor units mainboard indicator: led4: blink; led3: dark; led2: dark; led1: blink
3) Outdoor coil pipe middle sensor trouble
Error display on hand controller: F6
Outdoor units mainboard indicator: led4: blink; led3: dark; led2: blink; led1: dark
4) Outdoor coil pipe outlet sensor trouble
Error display on hand controller: F7
Outdoor units mainboard indicator: led4: blink; led3: dark; led2: blink; led1: blink
Indoor units mainboard indicators:
Patio indoor units: red led: blink: red led:blink; green led:dark; yellow led:dark
FY wall-mounting motor: red led:blink; yellow led:dark
New FY wall-mounting motor: red led:blink; green led:dark; yellow led:dark
Hanging indoor units: red led:blink; green led:dark; yellow led:dark
5) Fixed-frequency exhaust temperature sensor error
Error display on hand controller: F8
Outdoor units mainboard indicator: led4: blink; led3: blink; led2: dark; led1: dark (xed frequency 1)
led4: blink; led3: blink; led2: dark; led1: bright (xed frequency2)
6) Variable-frequency exhaust temperature sensor error
Error display on hand controller: F9
Outdoor units mainboard indicator: led4:blink; led3: blink; led2: dark; led1: blink (air-out sensor)
led4:bright; led3: dark; led2: dark; led1:blink (sensor of housing head cover)
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