Mitsubishi Electronics MSZ-FA25VA E1 MSZ-FA35VA E1, Trouble criterion of main parts

9-5. Trouble criterion of main parts

MSZ-FA25VA - E1

MSZ-FA35VA - E1

Part name

Room temperature thermistor(RT11)

Indoor coil thermistor (RT12(MAIN), RT13(SUB))

Indoor fan motor(MF)

Check method and criterion Figure

Measure the resistance with a tester. (Part temperature 10˚C ~ 30˚C)

Normal	Abnormal
8 k" ~ 20 k"	Open or short-circuit
Check 9-6. A.

Horizontal vane motor(MV1)

Measure the resistance between the terminals with a tester. (Part temperature 10°C ~ 30°C)

Color of the lead wire	Normal	Abnormal
BRN-other one	235 " ~ 255 "	Open or short-circuit

RED

ROTOR

YLW

BRN

ORN GRN

Vertical vane motor(MV2)

i-see Sensor motor(MT)

Measure the resistance between the terminals with a tester. (Part temperature 10°C ~ 30°C)

Color of the lead wire	Normal	Abnormal
BRN-other one	282 " ~ 306 "	Open or short-circuit

RED

ROTOR

YLW

BRN

ORN GRN

Front panel driving motor (MP)

Measure the resistance between the terminals with a tester. (Part temperature 10°C ~ 30°C)

Color of the lead wire	Normal	Abnormal
BRN-other one	94 " ~ 102 "	Open or short-circuit

Turn the power ON(i-see Sensor is energized) with the aluminum block part on the i-see Sensor P.C. board (upper part of i-see Sensor) covered with black vinyl tape, then measure the voltage between connector terminals of i-see Sensor using tester.

(Part temperature 10 ~ 40°C)

	w The aluminum block
Aluminum block i-see Sensor	part is covered with
	black vinyl tape.

RED

ROTOR

YLW

BRN

ORN GRN

i-see Sensor(RR)

	Connector	i-see Sensor P.C. board				Black
						vinyl tape
i-see Sensor			Normal range		Abnormal
connector terminals
2(-) - 4(+)			1.874 ~ 3.387V DC	Below 1.874 or above 3.387V DC
1(+) - 2(-)			1.010 ~ 1.420V DC	Below 1.010 or above 1.420V DC

NOTE: Pay attention to static electricity.

PLASMA DEODORIZING/
PLASMA AIR PURIFYING	Check 9-6. F or G.
power

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