Daikin VRV Inverter K Series - 4. Failure Diagnosis for Inverter System; 4.1 Points of Diagnosis

SiE-05C Troubleshooting
Troubleshooting PLUS Series 307
3.8 Outdoor Unit: Defect of Pressure Switch for High Pressure Control
Remote Controller
Display
HH
HH
33
33
Supposed Causes  Defect of pressure swich for high pressure control
 Defect of outdoor unit PC board
 Disconnected or faulty wiring connector
Trobleshooting
3.9 Outdoor Unit: Defect of Pressure Switch for Low Pressure Control
Remote Controller
Display
HH
HH
44
44
Supposed Causes  Defect of pressure swich for low pressure control
 Defect of outdoor unit PC board
 Disconnected or faulty wiring connector
Trobleshooting
YES
YES
Connect the wiring and turn
on again.
Replace the pressure switch
for low pressure control
(S3HP)
Replace outdoor unit PC
board.
Is connector
connected to X26A of the
outdoor unit PC
board?
Stop
running of
S3HP (X26A) contact
is open. (Disconnect the
connecter and check
the continuity)
NO
NO
(VF142)
YES
YES
Connect the wiring and turn
on again.
Replace the pressure switch
for low pressure control
(S1LP)
Replace outdoor unit PC
board.
Is connector
connected to X23A of the
outdoor unit PC
board?
Stop
running of
S1LP (X23A) contact is
open. (Disconnect the
connecter and check
the continuity)
NO
NO
(VF143)
SI-05C.BOOK Page 307 Monday, November 6, 2000 4:13 PM
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