Error Codes: Indoor Units
ESIE05-03
3–42
Part 3 – Troubleshooting
3
1
3
4
5
2.2
Malfunctioning Indoor PCB (
A1
)
Error code
A1
LED indications
The table below shows the LED indications.
Error generation
The error is generated when the data from the EEPROM is not received correctly.
EEPROM (Electrically Erasable Programmable Read Only Memory): A memory chip that holds its
content without power. It can be erased, either within the computer or externally and usually requires
more voltage for erasure than the 5 volts used in logic circuits. It functions like non-volatile
RAM, but writing to EEPROM is slower than writing to RAM.
Causes
The possible cause is a malfunctioning indoor PCB.
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Operation
HAP (green)
HBP (green)
Normal
c
c
Malfunctioning
c
w
c
x
w
—
x
—
Switch the power off
and on again to restart.
The malfunction may be caused by an
external factor, rather than damaged parts.
Locate the cause and correct the situation.
Normal reset?
Replace
indoor PCB.
No
Yes
ESIE05-03.book Page 42 Wednesday, April 6, 2005 4:09 PM
Содержание RZQ100B7W1B
Страница 1: ...Service Manual ESIE05 03 RZQ71 125B8V3B RZQ100 140B7W1B Sky Air Inverter R 410A B series...
Страница 2: ......
Страница 10: ...ESIE05 03 viii Table of Contents 3 1 4 5...
Страница 24: ...ESIE05 03 1 2 Part 1 System Outline 3 1 1 5...
Страница 32: ...General Outline Outdoor Units ESIE05 03 1 10 Part 1 System Outline 3 1 1 4 5...
Страница 42: ...Specifications ESIE05 03 1 20 Part 1 System Outline 3 1 1 4 5...
Страница 56: ...Functional Diagrams ESIE05 03 1 34 Part 1 System Outline 3 1 1 4 5...
Страница 58: ...ESIE05 03 1 36 Part 1 System Outline...
Страница 70: ...Wiring Diagrams ESIE05 03 1 48 Part 1 System Outline 3 1 1 4 5...
Страница 84: ...PCB Layout ESIE05 03 1 62 Part 1 System Outline 3 1 1 4 5...
Страница 86: ...ESIE05 03 2 2 Part 2 Functional Description 3 1 2 5...
Страница 110: ...General Functionality ESIE05 03 2 26 Part 2 Functional Description 3 1 2 4 5...
Страница 150: ...ESIE05 03 3 2 Part 3 Troubleshooting 3 1 3 5...
Страница 188: ...Troubleshooting ESIE05 03 3 40 Part 3 Troubleshooting 3 1 3 4 5...
Страница 264: ...Additional Checks for Troubleshooting ESIE05 03 3 116 Part 3 Troubleshooting 3 1 3 4 5...
Страница 266: ...ESIE05 03 4 2 Part 4 Commissioning and Test Run 3 1 4 5...
Страница 306: ...ESIE05 03 5 2 Part 5 Disassembly and Maintenance 3 1 5...
Страница 320: ...Disassembly and Maintenance Outdoor Units ESIE05 03 5 16 Part 5 Disassembly and Maintenance 3 1 5 5...