Daikin Indoor Unit Wall Mounted Type FTXG35EV1BS

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

Output voltage between pins 1 and 3

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

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

Can the shutter be opened and closed with hand?

Shutter opened all the way for continuity check

Shutter closed all the way for continuity check

Sign off on the limit switch continuity check

Warning: Never touch any live parts for at least 10 minutes after turning off the circuit breaker.

If unavoidably necessary to touch a live part, make sure there is no DC voltage using the tester.

Check the continuity with the tester. Reverse the pins and make sure there is continuity.

Sign off on the capacitor check

2. Check motor power supply voltage output (pins 4-7 and 4-8).

3. Check motor control voltage (pins 4-3).

4. Check rotation command voltage output (pins 4-2).

5. Check rotation pulse input (pins 4-1).

2. Check motor control voltage output (pins 2-1).;

Voltage of 320±30V is being applied

Stop the operation first and then the power, and disconnect the connector S70

DC voltage between pins 4 and 7

With the system and the power still off, reconnect the connector S70

Pulse (0-15 V) appears twice at pins 1 and 4 when fan motor is turned by hand

Is the fan motor protection fuse blown out?

If the fan motor protection fuse is blown out, the outdoor-unit fan may also be in trouble. Check the fan too