Daikin Super Multi Plus E-Series FTXG25EV1BW Service Manual page 132

Indoor Unit Control (SA Models)
8.1.3 When the Float Switch is Tripped During Heating Operation:
Thermostat
(running)
Humidifier
Float switch
Drain pump
During heating operation, if the float switch is not reset even after the 5 minutes operation,
5 seconds stop, 5 minutes operation cycle ends, operation continues until the switch is
reset.
8.1.4 When the Float Switch is Tripped and " AF " is Displayed on the
Remote Controller:
Remote
controller display
Float switch
Drain pump
*1: 5min
*4. (Malfunction residual):
If the float switch is tripped 5 times in succession, a drain malfunction is determined to have
occurred. " AF " is then displayed as operation continues.
*5. (Malfunction residual):
The remote controller displays " A3 " and the air conditioner comes to an abnormal stop if the float
switch is OFF for more than 5 minutes in the case of *4.
120
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
ON
1st time 2nd time
ON
OFF
*1 *1
The remote controller displays "A3" and the indoor unit stops.
5 sec.
5 min. 5 min.
"AF" display (running)
3rd time 4th time 5th time
*1 *1 *1 *1
*4
SiBE18-821_C
Reset
The indoor unit enters malfunction
treatment if the float switch is not
reset within 5 minutes.
The remote controller displays "A3"
and the indoor unit stops.
5 sec.
*1
*5 (R12936)
(R12935)
Function