Daikin FTKS50BVMB, Service Manual

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Service Check Function SiEN18-622
318 Troubleshooting
<Selection of setting item>
<Monitor mode>
<Confirmation of malfunction 1>
<Confirmation of malfunction 2>
<Confirmation of malfunction 3>
Detail
description
on next
page.
<Confirmation of malfunction 4>
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.
Push the SET (BS2) button once to
display "Second digit" of malfunction
code.
Push the SET (BS2) button once to
display "malfunction location".
Push the SET (BS2) button once to
display "master or slave 1 or slave 2"
and "malfunction location".
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”.
Contents of malfunction Malfunction
code
Open phase/Power supply imbalance Imbalance of inverter power supply
voltage P1
Faulty temperature sensor of inverter
radiation fin Faulty thermistor of inverter fin P4
Gas shortage Gas shortage alarm U0
Abnormal power supply voltage Insufficient Inverter voltage U2
Faulty charge of capacitor in main inverter circuit
Malfunction due to SP-PAM
Malfunction due to P-N short circuit
No implementation of test-run U3
Transmission error between indoor
and outdoor unit I/O transmission error U4
I/O transmission error
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
Connection error (BP unit)
Faulty system malfunction Wiring error (Auto-address error) UH
Conflict in wiring and piping, no setting
for system Conflict in wiring and piping UF