Common trouble and elimination
6-9
Electric system trouble and remedy
Fault
symptom
Possible cause
Eliminating method
the power
lamp on the
control
panel not
light
1.
+ no power supply
;
2.
D+ not connected well
;
3.
harness not tight
;
4.
control unit failure
;
1.
generator D+ no output, exchange
the generator and repair
2.
reconnect the cable D+
;
3.
reconnect the harness
;
4.
change the control panel or repair
;
malfunction
light on the
control
panel light
up
1.
system pressure error
;
2.
pressure switch defective
;
3.
pressure switch harness not
connected well
;
4.
harness connection not well
;
5.
control panel failure
;
1.
to connect the manifold gauge and
eliminate the malfunction
;
2.
change the pressure switch and
repair
;
3.
reconnect the pressure switch
;
4.
harness connection;
5.
change the control panel or repair
;
refrigerant
lamp is not
lighted up
1.
defrost sensor failure or
connection problem
;
2.
temperature control sensor
failure or connection problem
;
3.
temperature control sensor
installation position not
good
;
4.
temperature control switch
defective
;
5.
harness connection not
reliable
;
6.
Control panel defective
1.
change the defrost sensor or
connect the cable again
;
2.
change the temperature control or
connect the harness again
;
3.
re-install the temperature control
into the correct position
;
4.
change the temperature control
switch or repair
;
5.
harness connection again
;
6.
change the control panel or repair
;
condenser
fan not
working
1.
malfunction lamp light up
;
2.
sensor failure
;
3.
relay failure
;
4.
fuse burnt
;
5.
battery not charge or
connection loose
;
6.
harness connection not tight
;
7.
air blower connection loose
;
8.
air blower failure;
9.
control panel failure
;
1.
check the problem according to the
item 2
;
2.
change sensor or sensor connection
cable
;
3.
change the relay or repair the relay
of the connecting harness
;
4.
change the fuse
;
5.
change the battery or recharge the
battery ,make the connection
;
6.
re-connect the harness
;
7.
connecting to the venting cable
;
8.
change the blower or repair
;
9.
change the control panel or repair
;
Summary of Contents for XMQ6900 Series
Page 19: ...Operation Instruction 3 1 Figure 17 Set MotPPR Figure 18 Clear Trip A Figure 19 Clear Trip B...
Page 31: ...Operation Instruction 3 3 CC350 355 series A C Operation...
Page 32: ...Operation Instruction 3 3...
Page 33: ...Operation Instruction 3 3...
Page 34: ...Operation Instruction 3 3...
Page 35: ...Operation Instruction 3 3...
Page 44: ...Operation Instruction 3 4 1 9 Retarder operation...
Page 45: ...Operation Instruction 3 4 Section 1 1 2 1 10 Stopping parking...
Page 49: ...Operation Instruction 3 4 1 14 1 Emergency operation...
Page 50: ...Operation Instruction 3 5 WABCO ABS BASIC INTRODUCTION...
Page 51: ...Operation Instruction 3 5...
Page 52: ...Operation Instruction 3 5...
Page 53: ...Operation Instruction 3 5...
Page 54: ...Operation Instruction 3 5...
Page 55: ...Operation Instruction 3 6 ECAS System Introduction for tourist bus use 1 System introduction...
Page 56: ...Operation Instruction 3 6 3 System function...
Page 57: ...Operation Instruction 3 6...
Page 169: ...Appendix 7 6 Air braking schematic diagram...
Page 170: ...Appendix 7 7 Electric schematic diagram of the complete car 1...
Page 171: ...Appendix 7 7 Electric schematic diagram of the complete car 2...
Page 172: ...Appendix 7 7 Electric schematic diagram of the complete car 3...
Page 173: ...Appendix 7 7 Electric schematic diagram of the complete car 4...