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Additional Checks for Troubleshooting
ESIE05-04
3–56
Part 3 – Troubleshooting
3
1
3
4
5
4.4
Checking the Thermistors
Thermistors
If the cause of the problem is related to the thermistors, then the thermistors should be checked prior
to changing the PCB.
For more information about these thermistors, see:
Q
“Wiring Diagrams’’
Q
“Functions of Thermistors” on page 2-4.
Overview of
thermistors
The table below contains an overview of the thermistors:
Checking
To check the thermistors, proceed as follows:
Thermistor
Description
Indoor
R1T
Suction air thermistor
R2T
Heat exchanger thermistor
R3T
Gas pipe thermistor
Step
Action
1
Disconnect the thermistor from the PCB.
2
Read the temperature and the resistor value.
3
Check if the measured values correspond with the values in the table on the next pages.
Содержание FHQ100BUV3B
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Страница 62: ...General Outline ESIE05 04 1 44 Part 1 System Outline 3 1 1 4 5...
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Страница 112: ...Wiring Diagrams ESIE05 04 1 94 Part 1 System Outline 3 1 1 4 5...
Страница 140: ...ESIE05 04 2 2 Part 2 Functional Description 3 1 2 5...
Страница 164: ...ESIE05 04 3 2 Part 3 Troubleshooting 3 1 3 5...
Страница 206: ...Error Codes ESIE05 04 3 44 Part 3 Troubleshooting 3 1 3 4 5...
Страница 224: ...Additional Checks for Troubleshooting ESIE05 04 3 62 Part 3 Troubleshooting 3 1 3 4 5...
Страница 226: ...ESIE05 04 4 2 Part 4 Commissioning and Test Run 3 1 4 5...
Страница 252: ...ESIE05 04 5 2 Part 5 Disassembly and Maintenance 3 1 5...
Страница 384: ...Disassembly and Maintenance ESIE05 04 5 134 Part 5 Disassembly and Maintenance 3 1 5 5...
Страница 390: ...ESIE05 04 vi Index 3 1 4 5 W Wiring diagrams Indoor units k 1 61...