Daikin VRV III RXYQ5-54PY1, Service Manual

Page: 229 / 398

Troubleshooting by Remote Controller Si34-601A
218 Troubleshooting
<Selection of setting item>
<Monitor mode>
<Confirmation of malfunction 1>
To enter the monitor mode, push the
MODE (BS1) button when in
“Setting mode 1”.
Push the SET (BS2) button and set
the LED display to a setting item.
Push the RETURN (BS3) button
once to display "First digit" of
malfunction code.
<Confirmation of malfunction 2>
Push the SET (BS2) button once to
display "Second digit" of malfunction
code.
Push the RETURN (BS3) button and
switches to the initial status of
“Monitor mode”.
∗
Push the MODE (BS1) button and
returns to “Setting mode 1”.
<Confirmation of malfunction 3>
Push the SET (BS2) button once to
display "malfunction location".
* Refer to P.184 for Monitor mode.
* Refer to P.184 for Monitor mode.
Detail
description
on next
page.
<Confirmation of malfunction 4>
Push the SET (BS2) button once to
display "master or slave 1 or slave 2"
and "malfunction location".
Contents of malfunction Malfunction
code
Open phase/Power supply imbalance Imbalance of inverter power supply
voltage P1
Faulty temperature sensor inside
switch box Faulty thermistor of inverter box P3
Faulty temperature sensor of inverter
radiation fin Faulty thermistor of inverter fin P4
Incorrect combination of Inverter and
fan driver Incorrect combination of inverter PJ
Incorrect combination of fan driver 1
Incorrect combination of fan driver 2
Gas shortage Gas shortage alarm U0
Reverse phase Reverse phase error U1
Abnormal power supply voltage Insufficient Inverter voltage U2
Inverter open phase (phase T)
Charging error of capacitor in inverter
main circult
No implementation of test-run U3
Transmission error between indoor
and outdoor unit I/O transmission error U4
I/O transmission error
Transmission error between outdoor
units, transmission error between
thermal storage units, duplication of IC
address Sequential startup ADP alarm U7
Sequential startup ADP malfunction U7
Malfunction of transmission between
multi units (Multi 1)
Malfunction of transmission between
multi units (Multi 2)
Abnormal multi horsepower setting
Abnormal multi address setting
Excessive multi connections
Multi system malfunction
Transmission error of other system Indoor unit system abnormal in other
system or other indoor unit system
abnormal in own system U9
Erroneous field setting System transmission malfunction UA
Overconnection malfunction of indoor units
Malfunction of field setting
Refrigerant abnormal
Multi-ID abnormal
Alarm of TSS field setting UA
Alarm of CT address setting
Faulty system malfunction Wiring error (Auto-address error) UH
Transmission error in accessory
devices Malfunction of multi-level connection UJ
Alarm of multi-level connection UJ
Conflict in wiring and piping, no setting
for system Conflict in wiring and piping UF