Daikin Indoor Unit Wall Mounted Type FTXG25EV1BS

Warning: Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work.

Remove the fan motor fixing plate.

Remove the outer panels and plates.

Take out the fan motor fixing plate toward yourself.

When assembling, fit the lower hooks.

Loosen the washer fitted nut to remove the propeller fan.

When assembling, align mark of the propeller fan with D-cut section of the motor shaft.

When assembling, make sure ! mark of the fan motor goes up.

With the power ON, operation OFF, and the connector connected, check the following

Output voltage of about 5 V between pins 1 and 3

Generation of 3 pulses between pins 2 and 3 when the fan motor is operating

The connector has 3 pins, and there are two patterns of lead wire colors

Check No.10: Power Supply Waveforms Check

Measure the power supply waveform between pins 1 and 3 on the terminal board

Check to see if the power supply waveform is a sine wave (Fig.1)

Check to see if there is waveform disturbance near the zero cross (sections circled in Fig.2)

Sign off on the power supply waveforms check

Warning: Ensure the power is off before starting the procedure

Limit switch located at the left side of the drain pan assembly

Continuity of the switch connection checked

Shutter can be opened and closed with hand

Shutter kept open and closed all the way for each continuity check steps

Sign off on the limit switch continuity check

Warning: Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work.

1. Disconnect the connecting wires

Illustrations are for 3 room model. (4MK(X)S-F models have 4 ports)

2 Disconnect the connecting wires.

Connecting wires of the A, B, C, D port