Toyotomi MUL12- FWCA, Руководство по обслуживанию

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MAINTENANCE
ƹ Malfunction display: E4 Compressor Exhaust High Temperature Protection
Discharge temperature protection
Measure if compressor’s discharge
temperature has reached115
N
Y
Y
System pipeline leaks so complementation is
needed. Please add refrigerant according to the
amount specified in the nameplate
Measure if temperature sensor’s
resistance value is correct
Replace relevant
discharge temperature
sensor
N
Y
Replace the outdoor
unit mainboard
ƹ Malfunction display: E5 Compressor Overheat
Abnormal overcurrent
Check if compressor’s connection line
is properly connected
N
Y
Y
R eplace mainboard
Adjust compressor’s
connection line
Replace overcurrent
protector
Check if current value is higher than the
protector’s setting
If unit’s high pressure is normal
Refer to high pressure
protection
If voltage is normal
Contact the power
supply company
Y
Y
Y
N
N
N