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ESIE05-03
Additional Checks for Troubleshooting
Part 3 – Troubleshooting
3–105
3
3
4
5
1
5.3
Outdoor Unit: Checking the Expansion Valve
Checking
To check the electronic expansion valve, proceed as follows:
Step
Action
1
Check if the expansion valve connector is correctly inserted in the X12A of A1P.
2
Compare the expansion valve unit with the number of the connector to make sure it is cor-
rectly connected.
3
Switch the power OFF.
4
Switch the power ON to check whether the expansion valve is producing a clicking sound.
5
Check the coil current: Open circuit < normal < short circuit
6
Check the clicking sound again.
If...
Then...
The expansion valve has no
clicking sound
Disconnect the valve connector without the
clicking sound and proceed to step 5.
The table below contains the reference resistance values.
—
White
Grey
Black
Yellow
Red
Orange
White
—
45
ø
45
ø
Grey
—
45
ø
45
ø
Black
45
ø
—
90
ø
Yellow
45
ø
—
90
ø
Red
45
ø
90
ø
—
Orange
45
ø
90
ø
—
If...
Then...
There is a clicking sound
The expansion valve works properly.
There is no clicking sound
Replace the expansion valve unit.
There is still no clicking sound
Replace outdoor PCB A1P.
ESIE05-03.book Page 105 Wednesday, April 6, 2005 4:09 PM
Summary of Contents for RZQ100B7W1B
Page 1: ...Service Manual ESIE05 03 RZQ71 125B8V3B RZQ100 140B7W1B Sky Air Inverter R 410A B series...
Page 2: ......
Page 10: ...ESIE05 03 viii Table of Contents 3 1 4 5...
Page 24: ...ESIE05 03 1 2 Part 1 System Outline 3 1 1 5...
Page 32: ...General Outline Outdoor Units ESIE05 03 1 10 Part 1 System Outline 3 1 1 4 5...
Page 42: ...Specifications ESIE05 03 1 20 Part 1 System Outline 3 1 1 4 5...
Page 56: ...Functional Diagrams ESIE05 03 1 34 Part 1 System Outline 3 1 1 4 5...
Page 58: ...ESIE05 03 1 36 Part 1 System Outline...
Page 70: ...Wiring Diagrams ESIE05 03 1 48 Part 1 System Outline 3 1 1 4 5...
Page 84: ...PCB Layout ESIE05 03 1 62 Part 1 System Outline 3 1 1 4 5...
Page 86: ...ESIE05 03 2 2 Part 2 Functional Description 3 1 2 5...
Page 110: ...General Functionality ESIE05 03 2 26 Part 2 Functional Description 3 1 2 4 5...
Page 150: ...ESIE05 03 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 188: ...Troubleshooting ESIE05 03 3 40 Part 3 Troubleshooting 3 1 3 4 5...
Page 264: ...Additional Checks for Troubleshooting ESIE05 03 3 116 Part 3 Troubleshooting 3 1 3 4 5...
Page 266: ...ESIE05 03 4 2 Part 4 Commissioning and Test Run 3 1 4 5...
Page 306: ...ESIE05 03 5 2 Part 5 Disassembly and Maintenance 3 1 5...