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SiUS39-602
Troubleshooting by Indication on the Remote Controller
Troubleshooting
143
2.14
“
E3
”
Outdoor Unit:
Actuation of High Pressure Switch
Remote
Controller
Display
E3
Applicable
Models
REYQ72M, 96M
Method of
Malfunction
Detection
Abnormality is detected when the contact of the high pressure protection switch opens.
Malfunction
Decision
Conditions
Error is generated when the HPS activation count reaches the number specific to the operation
mode.
Supposed
Causes
Actuation of outdoor unit high pressure switch
Defect of High pressure switch
Defect of outdoor unit PC board
Instantaneous power failure
Faulty high pressure sensor
Troubleshooting
★
1: Actuation of high pressure switch (HPS)
• The outdoor unit PC board’s connector is disconnected.
• Is the outdoor unit heat exchanger dirty?
• Defect of outdoor fan
• Is the refrigerant over-charged?
• Faulty high pressure sensor
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Operation
is normal when turned
on again by remote
controller.
Replace outdoor unit PC board
(A1P).
YES
YES
There was an instantaneous
power failure or a past safety
device actuated. Re-check
refrigerant system.
NO
NO
(V3065)
Contact
S1PH or S2PH
is open.
Connect the connector and
operate again.
NO
YES
Summary of Contents for REYQ72
Page 35: ...Specifications SiUS39 602 24 Specifications...
Page 121: ...Field Setting SiUS39 602 110 Test Operation...
Page 129: ...Troubleshooting by Remote Controller SiUS39 602 118 Troubleshooting...
Page 225: ...Troubleshooting OP Unified ON OFF Controller SiUS39 602 214 Troubleshooting...
Page 232: ...SiUS39 602 Piping Diagrams Appendix 221 1 3 BS Unit BSVQ36MVJU BSVQ60MVJU 4D045338...
Page 235: ...Wiring Diagrams for Reference SiUS39 602 224 Appendix REYQ144 168 192MTJU C 3D050354A...
Page 240: ...SiUS39 602 Wiring Diagrams for Reference Appendix 229 2 4 BS Unit BSVQ36M 60MVJU 3D045069A...
Page 249: ...Example of Connection R 410A Type SiUS39 602 238 Appendix...
Page 255: ...Method of Replacing The Inverter s Power Transistors and Diode Modules SiUS39 602 244 Appendix...
Page 265: ...Precautions for New Refrigerant R 410A SiUS39 602 254 Precautions for New Refrigerant R 410A...
Page 269: ...SiUS39 602 iv Index...