U-MATCH AIR CONDITIONERS MAINTENANCE
94
Trouble
Code
Trouble Name
Origin of
Trouble Signal
Control Description
fault is displayed and the indoor fan is running normally. The
fault display disappears when the fault is removed.
F1
Failure of Evaporator
Temp. Sensor
Indoor evaporator
thermal bulb
Open-circuit or short-circuit of evaporator thermal bulb is
detected for continuous 5 seconds, under refrigeration and
dehumidification mode, the system will be shut off; and under
heating mode, all loads except for the four way valve are shut
off. The indicator is twinkling or fault code F1 is displayed. The
system can restore by itself and display fault elimination after the
fault is removed. Under air supply mode, only the fault is
displayed and the indoor unit is running normally. The fault
display disappears when the fault is removed.
F2
Failure of Condenser
Temp. Sensor
Outdoor condenser
thermal bulb
Open-circuit or short-circuit of condenser thermal bulb is
detected for continuous 5 seconds, under refrigeration and
dehumidification mode, the system will be shut off; and under
heating mode, all loads except for the four way valve are shut
off. The indicator is twinkling or fault code F2 is displayed. The
system can restore by itself and display fault elimination after the
fault is removed. Under air supply mode, only the fault is
displayed and the indoor unit is running normally. The fault
display disappears when the fault is removed.
For other types of refrigeration machines except for air duct
machine, condenser thermal bulb is not detected.
F3
Failure of Outdoor
Ambient Sensor
Outdoor environment
thermal bulb
Open-circuit or short-circuit of outdoor environment thermal
bulb is detected for continuous 5 seconds, under refrigeration and
dehumidification mode, the system will be shut off; and under
heating mode, all loads except for the four way valve are shut
off. The indicator is twinkling or fault code F3 is displayed. The
system can restore by itself and display fault elimination after the
fault is removed. Under air supply mode, only the fault is
displayed and the indoor unit is running normally. The fault
display disappears when the fault is removed.
F4
Failure of Exhaust
Temp. Sensor
Discharge thermal
bulb
After the compressor is started, open-circuit of discharge thermal
bulb is detected for continuous 5 seconds. Under refrigeration
and dehumidification mode, all loads will be shut off. Under
heating mode, all loads except for the four way valve are shut
off. The indicator is twinkling or fault code F4 is displayed. And
the buzzer gives out an alarm. After the fault is removed, the
system will restore by itself and clear the fault code.
Summary of Contents for ASCU-12A
Page 1: ...SERVICE MANUAL INDOOR UNITS ASCU A ASDU A ASFU A UNI ON OFF SERIE OUTDOOR UNITS ASGE A ...
Page 2: ......
Page 3: ...1 PRODUCT ...
Page 24: ...U MATCH AIR CONDITIONERS PRODUCT 23 5 PIPING DIAGRAM ...
Page 25: ...24 CONTROL ...
Page 26: ...U MATCH AIR CONDITIONERS CONTROL 25 CONTROL 1 OPERATION FLOWCHART 1 1 Cooling Dry Operation ...
Page 27: ...U MATCH AIR CONDITIONERS CONTROL 26 1 2 Heating Operation ...
Page 45: ...U MATCH AIR CONDITIONERS CONTROL 44 5 2 4 Dimensions ...
Page 48: ...GREE COMMERCIAL AIR CONDITION U MATCH AIR CONDITIONERS 47 INSTALLATION ...
Page 59: ......
Page 91: ...Model ASFU 60A ...
Page 93: ...GREE COMMERCIAL AIR CONDITION U MATCH AIR CONDITIONERS 91 MAINTENANCE ...
Page 160: ...PARTS GUIDE CASSETTE FLOOR CEILING DUCT UNITS OUTDOOR UNITS UNI ON OFF ...
Page 161: ......
Page 165: ...MAINTENANCE 162 2 Model ASGE 24A ASGE 24A WK Exploded Views ...
Page 167: ...MAINTENANCE 165 3 Model ASGE 36A Exploded Views ...
Page 169: ...ASGE 36A WK ...
Page 172: ...MAINTENANCE 168 4 Model ASGE 42A ASGE 42A WK Exploded Views ...
Page 174: ...MAINTENANCE 171 5 Model ASGE 48A ASGE 48A WK Exploded Views ...
Page 176: ...Model ASGE 60A WK ...
Page 187: ...U MATCH AIR CONDITIONERS MAINTENANCE 174 6 Model ASDU 60A Exploded Views ...
Page 191: ...MAINTENANCE 186 2 Model ASCU 24A ASCU 36A ASCU 42A ASCU 48A Exploded Views ...
Page 194: ...MAINTENANCE 189 5 2 3 Ceiling Type 1 Model ASFU 09A ASFU 12A ASFU 18A Exploded Views ...
Page 197: ...MAINTENANCE 192 2 Model ASFU 24A Exploded Views ...
Page 200: ...MAINTENANCE 195 3 Model ASFU 36A ASFU 42A ASFU 48A Exploded Views ...