ESIE05-03
Error Codes: Outdoor Units
Part 3 – Troubleshooting
3–77
3
3
4
5
1
3.13
Malfunction of Suction Pipe Pressure Sensor (
JC
)
Remote Controller
Display
JC
Method of
Malfunction
Detection
Malfunction is detected from pressure detected by low pressure sensor.
Malfunction
Decision
Conditions
When the suction pipe pressure sensor is short circuit or open circuit.
Supposed Causes
P
Defect of low pressure sensor system
P
Connection of high pressure sensor with wrong connection.
P
Defect of outdoor unit PC board.
Troubleshooting
*1 : Voltage measurement point
∗
2: Refer to pressure sensor, pressure/voltage characteristics table on page
3–115
.
Replace the low pressure sensor.
Connect low pressure sensor
properly and restart system.
NO
NO
Replace outdoor unit PC board A1P.
YES
YES
The low
pressure sensor is
connected to X64A (blue) of
outdoor unit PC board
(A1P).
The
relationship
between the *1
VH and low pressure
isnormal (see *2) when
voltage is measured between
X64A pins (2) and
(3) of outdoor unit
PC board (A1P)
(see *1).
Outdoor unit PC board A2P
GND
+5V
Low pressure sensor
X64A
Microcomputer
A/D input
∗
2 Measure voltage here.
4
3
2
1
Red
Black
White
(V2809)
ESIE05-03.book Page 77 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...