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
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...