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Additional Checks for Troubleshooting
ESIE02–01
3–66
Part 3 – Troubleshooting
3
1
3
4
5
5.2
Indoor Unit: Checking the Fan Motor Hall IC
Applicable units
Units using phase cut controlled fan motor with feedback signal.
Checking
To check the indoor unit fan motor hall IC, proceed as follows:
Step
Action
1
Make sure connector S7 on PCB 1 is properly connected.
2
Make sure the power is ON and that there is no operation.
3
Measure the voltage between pin 1 and 3 of S7.
4
Turn the fan one rotation with your hand and measure the generated pulses.
5
Proceed as follows:
If...
Then...
The measured voltage between pin 1 and 3 does
not equal 5 V
Replace the PCB 1.
The generated pulses do not equal 3 pulses
between pin 2 and 3
Replace the fan motor.
The measured voltage does not equal 5 V and
the generated pulses do not equal 3 pulses
between pin 2 and 3
Replace the PCB 1.
Содержание FHC45BZ7V1
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Страница 16: ...Introduction ESIE02 01 xii 3 1 4 5...
Страница 18: ...ESIE02 01 1 2 Part 1 System Outline 3 1 1 5...
Страница 42: ...General Outline Outdoor Units ESIE02 01 1 26 Part 1 System Outline 3 1 1 4 5...
Страница 49: ...ESIE02 01 General Outline Indoor Units Part 1 System Outline 1 33 3 1 4 5...
Страница 72: ...General Outline Indoor Units ESIE02 01 1 56 Part 1 System Outline 3 1 1 4 5...
Страница 86: ...Specifications ESIE02 01 1 70 Part 1 System Outline 3 1 1 4 5...
Страница 110: ...ESIE02 01 1 94 Part 1 System Outline...
Страница 130: ...Switch Box Layout ESIE02 01 1 114 Part 1 System Outline 3 1 1 4 5...
Страница 180: ...PCB Layout ESIE02 01 1 164 Part 1 System Outline 3 1 1 4 5...
Страница 182: ...ESIE02 01 2 2 Part 2 Functional Description 3 1 2 5...
Страница 204: ...General Functionality ESIE02 01 2 24 Part 2 Functional Description 3 1 2 4 5...
Страница 216: ...Overview of the cooling mode functions ESIE02 01 2 36 Part 2 Functional Description 3 1 2 4 5...
Страница 232: ...ESIE02 01 3 2 Part 3 Troubleshooting 3 1 3 5...
Страница 294: ...Error Codes System Malfunctions ESIE02 01 3 64 Part 3 Troubleshooting 3 1 3 4 5...