Gree GVA24AL-K3NNC7A/I Service Manual page 46

Service Manual
Malfunction
protection of
9
outdoor unit
jumper cap
Anti-reverse
protection of
compressor
10
Installation and Maintenance
Cooling: compressor and
outdoor fan stop operation,
while indoor fan operates
C4
Heating: compressor,
outdoor fan and indoor fan
all stop operation
Cooling: compressor and
outdoor fan stop operation,
while indoor fan operates
Heating: compressor,
LE
outdoor fan and indoor fan
all stop operation
1. Whether a jumper cap is installed
on the mainboard of ODU?
2. Is the mainboard of ODU damaged?
1. 1.Whether gas valve and liquid valve
ODU are open completely?
2. 2.Wheck the refrigerant in the system
leaking?
3. . Whether the pipeline of system
blocked?
4. . Whether indoor fan and outdoor fan
operate abnormally?
Refer to maintenance
43