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ESIE06-03
Error Codes: System Malfunctions
3–43
3
3
4
5
1
Troubleshooting
See also:
P
P
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
∗
Discharge pipe thermistor
∗
Hydro-box / outdoor unit heat exchanger thermistor
∗
Room temperature thermistor
∗
Outdoor air thermistor
Reconnect in position.
Open the stop valve.
Repair the pipe flare or replace
the square union.
Check the power transistor
harness for looseness. Correct it
as required. Also replace
cracked pipe if any.
Check the pipes for improper
contact. Correct as required.
Also replace cracked pipe if any.
Replace the electronic
expansion valve.
Replace the room temperature
or outdoor air thermistor, or the
hydro-box or outdoor unit heat
exchanger thermistor.
(1) Replace the PCB.
(2) Replace the compressor.
Procedure complete.
YES
Malfunctioning
NO
NO
YES
Any thermistor
disconnected?
Stop valve closed?
YES
NO
Gas shortage error
again?
Functioning
C
heck No.
06
Check the thermistors.
YES
Oil oozing at
internal piping?
NO
YES
C
heck No.
04
Electronic expansion valve
functioning?
YES
NO
Oil oozing at
relay pipe connections?
Check for gas leakage.
Change for a specified amount of
fresh refrigerant.
NO
YES
Compressor vibrating
too much?
NO
Summary of Contents for Altherma EKHBH Series
Page 2: ...ESIE06 03 1 2 Part 1 System Outline 3 1 1 5 ...
Page 26: ...Functional Diagrams ESIE06 03 1 26 Part 1 System Outline 3 1 1 4 5 ...
Page 32: ...Piping Diagrams ESIE06 03 1 32 Part 1 System Outline 3 1 1 4 5 ...
Page 38: ...Switch Box Layout ESIE06 03 1 38 Part 1 System Outline 3 1 1 4 5 ...
Page 58: ...PCB Layout ESIE06 03 1 58 Part 1 System Outline 3 1 1 4 5 ...
Page 60: ...ESIE06 03 2 2 Part 2 Functional Description 3 1 2 5 ...
Page 68: ...Hydro box Functional Concept ESIE06 03 2 10 Part 2 Functional Description 3 1 2 4 5 ...
Page 88: ...ESIE06 03 3 2 Part 3 Troubleshooting 3 1 3 5 ...
Page 134: ...Error Codes System Malfunctions ESIE06 03 3 48 Part 3 Troubleshooting 3 1 3 4 5 ...
Page 152: ...Additional Checks for Troubleshooting ESIE06 03 3 66 Part 3 Troubleshooting 3 1 3 4 5 ...
Page 154: ...ESIE06 03 5 2 Part 5 Disassembly and Maintenance 3 1 5 ...