SiUS341802EC
Troubleshooting by Error Code
Part 6 Service Diagnosis
286
3.35 Activation of High Pressure Switch
Applicable
Models
All outdoor unit models
Error Code
E3
Method of Error
Detection
Detect continuity across the high pressure switch in the protection device circuit.
Error Decision
Conditions
When part of the protection device circuit opens.
(Reference) Operating pressure of the high pressure switch:
Operating pressure: 4.0 MPa (580 psi)
Resetting pressure: 3.0 MPa (435 psi)
Supposed
Causes
Activation of high pressure switch
Defective high pressure switch
Defective outdoor unit main PCB (A1P)
Momentary power failure
Defective high pressure sensor
Troubleshooting
NO
YES
YES
Replace the high press
u
re
switch (S1PH).
Remedy defecti
v
e points.
YES
Are the
a
b
o
v
e 3 points
OK?
Does the error
E3
rec
u
r?
NO
Is the
operating
press
u
re of the high
press
u
re switch normal
(4.0 MPa
(5
8
0 psi))?
NO
(1) Mo
u
nt a press
u
re ga
u
ge on the high press
u
re
ser
v
ice port.
(2) Reset the operation
u
sing the remote controller,
and then restart the operation.
A
Check for the following 3 points:
(1) Is the stop
v
al
v
e open?
(2) Is the high press
u
re switch connector properly
connected to the o
u
tdoor
u
nit main PCB?
(3) Is there contin
u
ity across the high press
u
re switch?
Caution
Be s
u
re to t
u
rn off the power switch
b
efore connecting or disconnecting
connectors, or parts may
b
e damaged.
Go to the next page.
Summary of Contents for VRV Aurora RXLQ-TATJU Series
Page 407: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 400 RXLQ96 120TATJU RXLQ96 120TATJA 2D112581C...
Page 409: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 402 RXLQ72TAYDU RXLQ72TAYDA 2D112582D...
Page 411: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 404 RXLQ96 120TAYDU RXLQ96 120TAYDA 2D112583D...
Page 417: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 410 FXFQ07 09 12 15 18 24 30 36 48TVJU 3D086460B...
Page 420: ...Wiring Diagrams SiUS341802EC 413 Part 7 Appendix FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Page 425: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 418 FXEQ07 09 12 15 18 24PVJU 3D098557A...
Page 426: ...Wiring Diagrams SiUS341802EC 419 Part 7 Appendix FXDQ07 09 12 18 24MVJU C 3D050501C...
Page 433: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 426 FXHQ12 24 36MVJU 3D048116C...
Page 434: ...Wiring Diagrams SiUS341802EC 427 Part 7 Appendix FXAQ07 09 12 18 24PVJU 3D075354F...
Page 441: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 434 VAM1200GVJU 3D073270D...
