Troubleshooting Based On Equipment Condition - Daikin SkyAir RZQ200 · 250C7Y1B Service Manual

SiBE26-701

2. Troubleshooting Based on Equipment Condition

2.1

Troubleshooting Based on Equipment Condition

Troubleshooting
Equipment Condition
1 Equipment does not operate.
2 Fan operates, but compressor does not.
3 Cooling/heating operation starts but stops
immediately.
4 After equipment shuts down, it cannot be
restarted for a while.
5 Equipment operates but does not provide
cooling.
6 Equipment operates but does not provide
heating.
7 Equipment discharges white mist.
8 Equipment produces loud noise or shakes. See 94
9 Equipment discharges dust.
10 Remote controller LCD displays "88."
11 Swing flap does not operate.
12 Equipment emits odor.
13 Flap operates when power is turned on.
14 Change of operation mode causes flap to
move.
15 Fan operates in "M" mode during heating
even if remote controller is set to "Low."
16 Flap automatically moves during cooling.
17 Indoor unit fan operates in "L" mode for 1
minute in microcomputer-controlled dry
mode even if compressor is not operating.
18 In simultaneous ON/OFF multi-system
setup, indoor unit (sub) does not operate in
sync with the other indoor unit (main).
(Flat, fan, etc.)
19 Indoor unit fan operates after heating
operation stops.
20 Drain pump operates when equipment is
not operating.
21 Horizontal wing sends air to different
directions in cooling and heating even if it is
set to the same position.
22 Flap remains horizontal even if it is set to
Swing.
23 The group control remote controller is
incapable of setting to remote controller
thermostat.
24 During operation with a remote controller
thermostat, the thermostat turns OFF even
before the remote controller temperature
reaches the setting.
25 When a malfunction occurs in a unit
equipped with individual remote controllers
during one remote controller group control,
individual remote controller address
display shows 0 regardless of actual
address setting.

Troubleshooting Based on Equipment Condition

Remedy
See 84
See 85
See 87
See 89
See 90
See 92
See 93
See 95
See 96
See 97
Room smell and cigarette odors
accumulated inside the indoor unit are
discharged with air. Inside of the indoor unit
must be cleaned.
It is normal. The flap initializes for accurate
positioning.
It is normal. There is a control function that
moves the flap when operation mode is
changed.
It is normal. It is caused by the activation of
the overload control (airflow shift control).
It is normal. It is caused by the activation of
the dew prevention function or ceiling
soiling prevention function.
It is normal. The monitoring function
forcibly operates the fan for one minute.
It is normal. It is caused by a signal
transmission lag.
It is normal. The fan operates in the "LL"
mode for 60 to 100 seconds to dissipate the
residual heat in the heater.
It is normal. The drain pump continues to
operate for several minutes after
equipment is turned off.
It is normal. The airflow direction in cooling/
dry operation is different from that in
heating/fan operation.
It is normal. The flap does not swing in the
thermostat OFF mode.
It is normal. Remote controller thermostat
setting is unavailable during group control.
It is normal. In some cases, it is controlled
by preset temperature and suction
temperature (body thermostat).
It is normal. The address display of
individual remote controllers is always 0.
83