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Additional Checks for Troubleshooting
ESIE06-03
3–64
3
1
3
4
5
5.15
“Inverter Checker” Check
Check No.16
Characteristics
If an abnormal stop occurs due to compressor startup failure or overcurrent output when using the
inverter unit, it is difficult to judge whether it results from the compressor failure or another failure
(control PC Board, power transistor, etc.). The inverter analyzer makes it possible to judge the cause
of trouble easily and securely. (Connect this analyzer as a quasi compressor instead of a compressor
and check the output of the inverter.)
Operation method
1
Be sure to turn the power off.
2
Install the inverter analyzer instead of a compressor.
Note:
Make sure the charged voltage of the built-in smoothing electrolytic capacitor drops to
10 VDC or below before carrying out the service work.
Reference:
If the connector terminal of the compressor is not a faston terminal (difficult to remove the wire on
the terminal), it is possible to connect a wire available on site to the unit from the output side of the
PCB. (Do not connect it to the compressor at the same time, otherwise it may result in incorrect
detection.)
3
Turn the power on and operate the air conditioner.
(1) Remove the faston terminals
from the terminal block of
the compressor.
(2) Connect the faston terminals
to the terminals of the Inverter
Analyzer.
Be careful not to touch the terminals
(U,V,W) with each other. Otherwise,
high voltage is applied.
Compressor
Inverter Analyzer
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 ...