Mitsubishi Electric MXZ-SM72TAM-U1 Service Manual page 113

Photo 6
Clamps
Photo 8
5. Removing the thermistor <Compressor> (TH4) and thermistor <HIC pipe> (TH2)
1. Remove the service panel. (See Photo 1)
2. Disconnect the connectors, TH4 (white) and TH2 (black) on the multi controller board in the electrical parts box.
3. Loosen the clamp or band for the lead wire of the electrical parts box and the separator.
4. Pull out the thermistor <Compressor> (TH4) from the sensor holder and the thermal protector (TRS). (See Photo 7)
5. Remove the thermal protector (TRS) from the holder. (See Photo 7)
6. Removing the thermistor <Outdoor liquid pipe> (TH3)
1. Remove the service panel. (See Photo 1)
2. Remove the top panel. (See Photo 1)
3. Remove the cover panel front. (See Photo 1)
4. Remove the cover panel rear. (See Photo 1)
5. Remove the side panel R. (See Photo 1)
6. Disconnect the connector, TH3 (white), on the multi controller board in the electrical parts box.
7. Loosen the clamp or band for the lead wire of the electrical parts box and the separator.
8. Pull out the thermistor <Outdoor liquid pipe> (TH3) from the sensor holder. (See Photo 9)
Note:
• Attach the band to the same position when loosening it.
Photo 9
7. Removing the 4-way valve coil (21S4)
1. Remove the service panel. (See Photo 1)
OCH800A_113
Electrical parts box
Lead wire of thermistor <Ambient> (TH7)
Sensor holder
Thermistor
<Outdoor liquid pipe> (TH3)
Photo 7
Thermistor
<Suction pipe> (TH6)
Thermistor
<Compressor>
(TH4)
Compressor
(MC)
Stop valve fixing screws
Thermistor
<HIC pipe>
(TH2)
Ball valve
fixing screws
Thermal
protector (TRS)