MovinCool Climate Pro 18 Service Manual - Manual (Page 84)

Repair Section
84
9.10 Inspection of Electronic Expansion Valve Control Coil
• Check resistance across the connector pins of
the electronic expansion valve control coil. Coil
resistance should be between 26 to 56 ohm at
room temperature.
- Between Blue and Red
- Between Orange and Red
- Between Yellow and Red
- Between White and Red
• If the resistance reading does not meet the
above condition, replace the electronic
expansion valve control coil.
9.11 Inspection of 4-Way Valve Controller Coil
• Check resistance across the connector pins of
the 4-way valve controller coil. Coil resistance
should be between 350 to 520 ohm at room
temperature.
• If the resistance reading does not meet the
above condition, replace the 4-way valve
controller coil.
9.12 Inspection of Thermistor
• Using an ohmmeter, check the resistance
value across the 2-pin connector.
• Thermistors:
- Indoor air inlet thermistor (RTS)
- Outdoor air inlet thermistor (ODS)
- Indoor pipe thermistor (CTS1)
- Compressor pipe thermistor (CTS2)
- Outdoor pipe thermistor (CTS3)
ILL00906-00
7 6 5 4 3 2 1
Connector Number Wire Color
1 Red
2 Blue
3 Orange
4 Yellow
5
6
7
White
Not in use
Not in use
ILL00862-00
I003204
0
5
10
15
20
32
(0)
41
(5)
50
(10)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
133
(45)
122
(50)
Temp. ° F ( ° C)
Resistance (k ohm)
Thermistor Specification