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ESIE09-08A
Troubleshooting by Indication on the Remote Controller
Troubleshooting
193
3.42
“L5”
Indoor Unit: Inverter Compressor Abnormal -
R-134a
Remote Control
Display
L5
Subcode 13
Applicable Models
All indoor units
Method of
Malfunction
Detection
Malfunction is detected from current flowing in the power transistor.
Malfunction
Decision Conditions
When an excessive current flows in the power transistor.
(Instantaneous overcurrent also causes activation.)
Supposed Causes
Overcurrent immediate
Defect of compressor coil (disconnected, defective insulation)
Compressor start-up malfunction (mechanical lock)
Defect of inverter PC board [A4P (1
ø
) or A5P (3
ø
)]
Troubleshooting
Higher voltage than actual is displayed when the inverter output voltage is checked by tester.
Caution
Be sure to turn off power switch before connect or disconnect connector, or
parts damage may be occurred.
Compressor inspection
Inverter
output voltage
check Inverter output
voltage is not balanced.
(Normal if within
±
5V Must be
measured when
frequency is stable.
Replace the compressor.
Compressor inspection
Inspect according to the diagnosis
procedure for odd noises, vibration
and operating status of the
compressor.
NO
Replace the inverter PC Board assy [A4P (1ø) or A5P (3ø)].
YES
YES
Correct power supply.
YES
The
compressor's coil is
disconnected or the
insulation is
defective.
NO
NO
Disconnect the connection
between the compressor and
inverter. Make the power
transistor check mode setting
ON by service mode.
There is instantenious
power drop.
Содержание ALTHERMA HT ERSQ 011 AA
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...