Troubleshooting
Electrical Control System
206
2.4.4.17. J5 Malfunction
Malfunction conditions
If the sampling voltage is not 5V, the LED displays a failure
code.
Possible causes
●
Wiring mistakes
●
Faulty overload protector
●
System blockages
●
Faulty outdoor PCB
Are the high pressure
switch and main control
boar wired correctly?
Are the high pressure
switch and main control
boar wired correctly?
Method:
Disconnect the plug.
Measure the resistance of
the
high pressure protector, if
the protector is normal the
value is o, Does a problem
still exist?
Method:
Disconnect the plug.
Measure the resistance of
the
high pressure protector, if
the protector is normal the
value is o, Does a problem
still exist?
Yes
Yes
Connect high pressure
switch and mian control
board
Connect high pressure
switch and mian control
board
No
Replace high pressure protector
Replace high pressure protector
No
Is the high
pressure protector
broken?
Is the high
pressure protector
broken?
Is the outdoor ambient
temperature is higher than
50
℃?
Is the outdoor ambient
temperature is higher than
50
℃?
No
Stop the unit
Stop the unit
Yes
Check if the outdoor unit
ventilation is good
Check if the outdoor unit
ventilation is good
Yes
Ensure that the outdoor unit
ventilation is functioning properly
Ensure that the outdoor unit
ventilation is functioning properly
Is the heat exchanger dirty?
Is the heat exchanger dirty?
No
Clean the heat exchanger
Clean the heat exchanger
Yes
Check whether the refrigerant
system is functioning properly
Check whether the refrigerant
system is functioning properly
Replace outdoor main
board. Is the problem
resolved?
Replace outdoor main
board. Is the problem
resolved?
No
J5 displayed
J5 displayed
High pressure protection
High pressure protection
Is the outdoor fan running
properly?
Is the outdoor fan running
properly?
please refer to the solution of fan
speed has been out of control
malfunction . Find out the cause and
have it solved.
please refer to the solution of fan
speed has been out of control
malfunction . Find out the cause and
have it solved.
No
Yes
NO
Содержание Super DC Series
Страница 1: ...Contents i Energy Related Products SUPER DC INVERTER SERIES Service Manual 2017...
Страница 14: ...Service Space Indoor Units 12 3 Service Space 1000mm 1000mm 1000mm 1000m m Chart 3...
Страница 17: ...Air Velocity Distributions Reference Data Indoor Units 15 30 42K Cooling Heating...
Страница 18: ...Air Velocity Distributions Reference Data Indoor Units 16 48 55K Cooling Heating...
Страница 23: ...Field Wiring Indoor Units 21 10 Field Wiring...
Страница 30: ...Wiring Diagrams Indoor Units 28 4 Wiring Diagrams MTBU 12HWFN1 QRD0W MTB 18HWFN1 QRD0...
Страница 32: ...Static Pressure Indoor Units 30 5 Static Pressure MTBU 12HWFN1 QRD0W MTB 18HWFN1 QRD0...
Страница 33: ...Static Pressure Indoor Units 31 MTB 24HWFN1 QRD0 MTB 30HWFN1 QRD0...
Страница 34: ...Static Pressure Indoor Units 32 MTB 36HWFN1 QRD0 MTB 42HWFN1 QRD0 MTB 48HWFN1 QRD0 MTB 55HWFN1 QRD0...
Страница 45: ...Features Indoor Units 43...
Страница 47: ...Service Space Indoor Units 45 3 Service Space Ensure enough space required for installation and maintenance...
Страница 53: ...Field Wiring Indoor Units 51 9 Field Wiring...
Страница 57: ...Service Space Indoor Units 55 3 Service Space...
Страница 67: ...Field Wiring Indoor Units 65 10 Field Wiring...
Страница 70: ...Features Indoor Units 68...
Страница 72: ...Service Space Indoor Units 70 3 Service Space...
Страница 73: ...Wiring Diagrams Indoor Units 71 4 Wiring Diagrams MCA3U 12HRFN1 QRD0W MCA3 18HRFN1 QRD0...
Страница 77: ...Field Wiring Indoor Units 75 10 Field Wiring MCA3U 12HRFN1 QRD0W MCA3 18HRFN1 QRD0...
Страница 81: ...Features Console Type 79 1 7 Active carbon filter is standard...
Страница 83: ...Console Type Console Type 81 3 Service Space...
Страница 84: ...Console Type Console Type 82 4 Wiring Diagrams MFAU 12HRFN1 QRC8W MFA 16HRFN1 QRC8W...
Страница 89: ...Console Type Console Type 87 10 Field Wiring...
Страница 93: ...Service Space M Floor standing Type 91 3 Service Space...
Страница 94: ...Wiring Diagrams M Floor standing Type 92 4 Wiring Diagrams MFM 24HRFN1 QRD0 MFM 36HRFN1 QRD0 MFM 48HRFN1 QRD0...
Страница 95: ...Wiring Diagrams M Floor standing Type 93 MFM 55ARFN1 RRD0...
Страница 100: ...Field Wiring M Floor standing Type 98 9 Field Wiring MFM 24HRFN1 QRD0 MFM 36HRFN1 QRD0 MFM 48HRFN1 QRD0...
Страница 101: ...Field Wiring M Floor standing Type 99 MFM 55ARFN1 RRD0...
Страница 104: ...Dimensions GAFloor standing Type 102 2 Dimensions Dimension Mode W mm D mm H mm MFGA 55ARFN1 RRD0 B 610 390 1925...
Страница 105: ...Service Space GAFloor standing Type 103 3 Service Space...
Страница 106: ...Wiring Diagrams GAFloor standing Type 104 4 Wiring Diagrams MFGA 55ARFN1 RRD0 B...
Страница 112: ...Field Wiring GAFloor standing Type 110 10 Field Wiring...
Страница 115: ...Dimensions Outdoor Units 113 Model KBtu h Unit mm W D H W1 A B 48 55 952 415 1333 1045 634 404...
Страница 117: ...Wiring Diagrams Outdoor Units 115 3 Wiring Diagrams MOB30U 12HFN1 QRD0W MOB30U 16HFN1 QRC8W...
Страница 118: ...Wiring Diagrams Outdoor Units 116 MOB30U 18HFN1 QRD0 MOCA30U 24HFN1 QRD0 MOD30U 30HFN1 QRD0...
Страница 119: ...Wiring Diagrams Outdoor Units 117 MOD30U 36HFN1 QRD0 MOD30U 42HFN1 QRD0...
Страница 120: ...Wiring Diagrams Outdoor Units 118 MOD30U 36HFN1 RRD0 MOD30U 42HFN1 RRD0...
Страница 121: ...Wiring Diagrams Outdoor Units 119 MOE30U 48HFN1 QRD0 MOE30U 48HFN1 RRD0 MOE30U 55HFN1 RRD0...
Страница 154: ...Refrigerantpipe installation Installation 152...
Страница 179: ...Troubleshooting Electrical Control System 177 2 1 8 Display board of GA floor standing...
Страница 223: ...Controller Electrical Control System 221 3 2 2 KJR 120C1 BTF E Name and functions of buttons on the wire controller...