Troubleshooting
Electrical Control System
93
2.4.4.16. P7 malfunction
P7 display
P7 display
High temperature protection of
evaporator
High temperature protection of
evaporator
Whether compressor
operates?
Whether compressor
operates?
Yes
Check whether the outdoor
ambient temperature is higher
than 30
℃
Check whether the outdoor
ambient temperature is higher
than 30
℃
No
Correct the connection
Correct the connection
No
Check the connection
between T2 and PCB.
Check whether T2 and T2B
Is reversed
Check the connection
between T2 and PCB.
Check whether T2 and T2B
Is reversed
Check whether the
resistance of T2 is normal
refer to the
Appendix
1
Check whether the
resistance of T2 is normal
refer to the
Appendix
1
Replace the temperature sensor
Replace the temperature sensor
No
Yes
Yes
Stop the unit
Stop the unit
Yes
Check whether the air-outlet is
blocked?
Check whether the air-outlet is
blocked?
Check whether the heat
exchanger and filter are
dirty
?
Check whether the heat
exchanger and filter are
dirty
?
Check whether the indoor fan
is running normal?
Check whether the indoor fan
is running normal?
No
Yes
Clean the air-outlet
Clean the air-outlet
Replace the indoor main
PCB
Replace the indoor main
PCB
Clean the heat exchanger and filter
Clean the heat exchanger and filter
Yes
No
Yes
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
No
Summary of Contents for BSBSI36CTM
Page 5: ...External Appearance General Information 3 2 External Appearance 2 1 Indoor Units Duct ...
Page 15: ...Wiring Diagrams 13 4 Wiring Diagrams BSBSIE36CTM BSBSIE48CTM BSBSIE60CTM ...
Page 22: ...Field Wiring 20 Duct Type 10 Field Wiring ...
Page 25: ...Dimensions 23 Outdoor Units Model Unit mm W D H W1 A B BSBSIC60CTM 952 415 1333 1045 634 404 ...
Page 28: ...Wiring Diagrams 28 Outdoor Units 4 Wiring Diagrams BSBSIC36CTM BSBSI48CTM BSBSIC60CTM ...
Page 42: ...Installation Installation 43 ...
Page 82: ...Troubleshooting Electrical Control System 85 ...