Service Manual

SiUS121502E Function of FFQ Series
Function and Control 55
2.1.3 If the Float Switch is ON with the Thermostat OFF in Cooling Operation

When the float switch turns ON, the drain pump turns ON simultaneously.

If the float switch remains ON even after the residual operation of the drain pump has ended,
the error code A3
is displayed on the remote controller.

The drain pump turns OFF once residual operation has ended, then turns ON again after 5
seconds.
2.1.4 If the Float Switch Turns ON and OFF Continuously, or the Float Switch
Turns ON While
AF
Displayed

When the float switch turns ON, the drain pump turns ON simultaneously.
∗1: If the float switch continues to turn ON and OFF 5 times consecutively, it is judged as a drain
system error and the error code
AF
is displayed on the remote controller.
∗2: The drain pump continues to turn ON/OFF in accordance with the float switch ON/OFF even
after
AF
is displayed on the remote controller.
∗3: While the error code
AF
is displayed, if the float switch remains ON even after the residual
operation of the drain pump has ended, the error code
A3
will be displayed on the remote
controller.
ON
OFF
OFF
ON
ON
OFF
ON
OFF
5 min. 5 sec.
(R21090)
Float switch
Error display
Thermostat
(running)
Drain pump
A3
ON
OFF
OFF
ON
ON
OFF
ON
OFF
5 min. 5 min. 5 min. 5 min. 5 min. 5 min. 5 sec.5 min.
(R21091)
1st 2nd 3rd 4th 5th
AF A3
Float switch
Error display
Thermostat
(running)
Drain pump
}
∗1
}
∗3
}
∗2