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ESIE09-08A
Troubleshooting by Indication on the Remote Controller
Troubleshooting
199
3.48
“LC”
Indoor Unit: Malfunction of Transmission between
Inverter and Control PC Board
Remote Control
Display
LC
Subcode 29
Applicable Models
All indoor units
Method of
Malfunction
Detection
Check the communication state between inverter PC board and control PC board by micro-computer.
Malfunction
Decision Conditions
When the correct communication is not conducted in certain period.
Supposed Causes
Malfunction of connection between the inverter microcomputer and indoor control microcomputer
Defect of indoor unit PC board [A4P (1
ø
) or A5P (3
ø
)]
External factor (Noise etc.)
Troubleshooting
Caution
Be sure to turn off power switch before connecting or disconnecting connector,
otherwise parts may be damaged.
Are the
connectors of the
inverter PC board and the
control PC board securely
connected?
Replace the inverter PC board
[A4P (1Ø) or A5P (3Ø)] or the control
PC board
Connect a connecting wire, and
then restart operation.
NO
Are there
any broken wires in
the connectors of the
inverter PC board and
the control PC
board?
Repair the broken wires, and then
restart operation.
YES
YES
NO
Содержание ALTHERMA HT EKBUHAA6 V3
Страница 2: ......
Страница 7: ...ESIE09 08A Table of Contents v 1 3 Service Tools 283 Index i Drawings Flow Charts iii ...
Страница 13: ...ESIE09 08A General Information 1 Part 1 General Information 1 Model Names of Indoor Outdoor Units Tanks 2 ...
Страница 16: ...Model Names of Indoor Outdoor Units Tanks ESIE09 08A 4 General Information ...
Страница 17: ...ESIE09 08A Specifications 5 Part 2 Specifications 1 Specifications 6 1 1 Outdoor Units 6 1 2 Indoor Unit 8 ...
Страница 28: ...Refrigerant Circuit ESIE09 08A 16 Refrigerant Circuit EKHBRD 011 014 016 AB AC V1 Y1 ...
Страница 38: ...Functional Parts Layout ESIE09 08A 26 Refrigerant Circuit 2 6 EKHTSU 200 260 A AB AC Front view Tank sensor ...
Страница 40: ...Functional Parts Layout ESIE09 08A 28 Refrigerant Circuit ...
Страница 63: ...ESIE09 08A PCB Layout for EKHBRD 011 014 016 AA AB AC V1 Y1 Refrigerant Circuit 51 ...
Страница 64: ...PCB Layout for EKHBRD 011 014 016 AA AB AC V1 Y1 ESIE09 08A 52 Refrigerant Circuit ...
Страница 125: ...ESIE09 08A Field Setting Test Operation 113 ...
Страница 232: ...Troubleshooting by Indication on the Remote Controller ESIE09 08A 222 Troubleshooting ...
Страница 237: ...ESIE09 08A Piping Diagrams Appendix 227 EKHBRD 011 014 016 AB AC V1 Y1 ...
Страница 250: ...Wiring Diagrams ESIE09 08A 240 Appendix EKHBRD 011 014 016 AB AC V1 ...
Страница 251: ...ESIE09 08A Wiring Diagrams Appendix 241 ...
Страница 256: ...Wiring Diagrams ESIE09 08A 246 Appendix EKHBRD 011 014 016 AB AC Y1 ...
Страница 257: ...ESIE09 08A Wiring Diagrams Appendix 247 ...
Страница 260: ...Wiring Diagrams ESIE09 08A 250 Appendix ...
Страница 266: ...Method of Replacing the Inverter s Power Transistors Modules ESIE09 08A 256 Appendix Inverter PC board C C W U V ...
Страница 288: ...3 Way Valve ESIE09 08A 278 Appendix ...