ESIE13-02A
Additional Checks for Troubleshooting
159
Part 4 Troubleshooting
4
3
4
5
4
6.9
Check No.10 - Outdoor Unit: Fan Speed Pulse
1
Disconnect the connector X106A with the power supply OFF and Operation OFF.
2
Is the voltage between pins 4 and 3 of X106A about 15 VDC after turning the power supply on?
3
Is the voltage between pins 4 and 1 of X106A about 5 VDC?
4
Is the voltage between pins 4 and 7 of X106A about 325 VDC ± 30 VDC?
5
Connect the connector X106A with the power supply OFF and Operation OFF.
6
When making one turn of the upper fan motor by hand after turning the power supply on, is a pulse
(0 and 5 V) generated 2 times between pins 4 and 1 of X106A? (Measure at the contact terminal
on the harness side with the connector connected.)
7
Disconnect the connector X107A with the power supply OFF and Operation OFF.
8
Is the voltage between pins 4 and 3 of X107A about 15 VDC after turning the power supply on?
9
Is the voltage between pins 4 and 1 of X107A about 5 VDC?
10
Is the voltage between pins 4 and 7 of X107A about 325 VDC ± 30 VDC?
11
Connect the connector X107A with the power supply OFF and Operation OFF.
12
When making one turn of the lower fan motor by hand after turning the power supply on, is a pulse
(0 and 5 V) generated 2 times between pins 4 and 1 of X107A?
(2) (7): NO Faulty PC board Replace the PC board.
(3) (8): NO Faulty PC board Replace the PC board.
(5)(10): NO Faulty hall IC Replace the DC fan motor.
(2) (3) (5) (7) (8) (10): YES Replace the PC board.
1
2
3
4
5
6
7
Fan speed pulse input (0V and 5V)
0V
15V
GND
NC
NC
250~350V(during operation)
(S2679)
Summary of Contents for EHYHBH05AAV3
Page 16: ...Introduction ESIE13 02A 16 3 1 4 5...
Page 29: ...ESIE13 02A Functionality 29 Part 1 System Outline 3 1 4 5...
Page 30: ...Functionality ESIE13 02A Part 1 System Outline 30 3 1 1 4 5...
Page 35: ...ESIE13 02A Wiring Diagrams 35 Part 1 System Outline 3 1 4 5...
Page 36: ...Wiring Diagrams ESIE13 02A Part 1 System Outline 36 3 1 1 4 5...
Page 38: ...Wiring Diagrams ESIE13 02A Part 1 System Outline 38 3 1 1 4 5 3 3 Cable Dimensions...
Page 39: ...ESIE13 02A Wiring Diagrams 39 Part 1 System Outline 3 1 4 5...
Page 50: ...Outdoor Unit ESIE13 02A Part 2 Specifications 50 3 1 2 5...
Page 51: ...ESIE13 02A 51 Part 3 Commissioning 4 3 4 5 3 Part 3 Commissioning See Note on page 6...
Page 52: ...ESIE13 02A Part 3 Commissioning 52 3 1 3 5...
Page 98: ...Error Codes Hydro box ESIE13 02A Part 4 Troubleshooting 98 3 1 4 5 Troubleshooting...
Page 115: ...ESIE13 02A Error Codes Outdoor Units 115 Part 4 Troubleshooting 4 3 4 5 4 Troubleshooting...
Page 170: ...Maintenance Schedule ESIE13 02A Part 6 Maintenance 170 3 1 6...