Daikin CMSQ200A7W1B Service Manual page 145

Troubleshooting by Remote Controller
Malfunction code indication by outdoor unit PC board
<Monitor mode>
To enter the monitor mode, push the
MODE (BS1) button when in
"Setting mode 1".
* Refer to P.106 for Monitor mode.
<Selection of setting item>
Push the SET (BS2) button and set
the LED display to a setting item.
* Refer to P.106 for Monitor mode.
<Confirmation of malfunction 1>
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.
<Confirmation of malfunction 3>
Push the SET (BS2) button once to
display "malfunction location".
<Confirmation of malfunction 4>
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".
134
PC board malfunction
Abnormal discharge pressure
Abnormal suction pressure
Compressor lock
Activation of OC
Over load, over current,
abnormal lock of outdoor unit fan motor
Malfunction of electronic expansion
valve
Abnormal position signal of outdoor
unit fan motor
Faulty sensor of outdoor air
temperature
Abnormal discharge pipe temperature
Abnormal heat exchanger temperature Refrigerant over charge
Faulty current sensor
Faulty sensor of discharge pipe
temperature
Detail
description
on next
page.
Faulty sensor of suction pipe
temperature
Faulty sensor of heat exchanger
temperature
Malfunction of the liquid pipe
temperature sensor
Faulty sensor of subcool heat
exchanger temperature
Faulty sensor of discharge pressure
Faulty sensor of suction pressure
Instantaneous power failure
Inverter radiation fin temperature rising Over heating of inverter radiation fin temperature
DC output over current
Electronic thermal
Stall prevention (Limit time)
Transmission error between inverter
and outdoor unit
Contents of malfunction
PC board malfunction
Faulty PC board
HPS activated
Abnormal Pe
Detection of INV compressor lock
Detection of STD1 compressor lock
Detection of STD2 compressor lock
Instantaneous over current of DC fan 1 motor
Detection of DC fan 1 motor lock
Instantaneous over current of DC fan 2 motor
Detection of DC fan 2 motor lock
EV1
EV2
EV3
Abnormal position signal of DC fan 1 motor
Abnormal position signal of DC fan 2 motor
Faulty Ta sensor (short)
Faulty Ta sensor (open)
Abnormal Td
Faulty CT1 sensor
Faulty CT2 sensor
Faulty Tdi sensor (short)
Faulty Tds1 sensor (short)
Faulty Tds2 sensor (short)
Faulty Tdi sensor (open)
Faulty Tds1 sensor (open)
Faulty Tds2 sensor (open)
Faulty Ts1 sensor (short)
Faulty Ts1 sensor (open)
Faulty Ts2 sensor (short)
Faulty Ts2 sensor (open)
Faulty Tb sensor (short)
Faulty Tb sensor (open)
Faulty TI sensor (short)
Faulty TI sensor (open)
Faulty Tsh sensor (short)
Faulty Tsh sensor (open)
Faulty Pc sensor (short)
Faulty Pc sensor (open)
Faulty Pe sensor (short)
Faulty Pe sensor (open)
∗ NO display on remote controller
(Judge during compressor operation)
Inverter instantaneous over current
IGBT malfunction
Electronic thermal switch 1
Electronic thermal switch 2
Out-of-step
Speed down after startup
Lightening detection
Stall prevention (Current increasing)
Stall prevention (Faulty start up)
Abnormal wave form in startup
Out-of-step
Inverter transmission error
SiBE28-805
Malfunction
code
E1
E3
E4
E5
E6
E7
E9
H7
H9
F3
F6
J2
J3
J5
J6
J7
J9
JA
JC
(L2)
L4
L5
L5
L8
L9
LC
Troubleshooting