Movincool OP63 Service Manual

Page of 77
Repair Section
62
8.11 Inspection of Transformer
• Measure resistance across the terminals of the
transformer. 
(All terminals must be disconnected from the
unit.)
• Between terminals (at 77 °F (25 °C))
- H1-H4 Approx. 0.3 ohm
- X1-X4 Approx. 0.3 ohm
- X1-H4 Approx. Open
• If the measured resistance is not equal to these
standard values, replace the transformer.
8.12 Inspection of Wiring Connection
• Refer to the Wiring Diagrams on page 19 and check for connection of each wire.
8.13 Inspection of Thermistor
• Using an Ohm-meter, check the resistance value across the 2-pin connector. At normal
temperature (77 °F (25 °C)) either thermistor (room or freeze) should measure approximately 
10 k ohm.
I002169
X4
X2
X3
X1
H1
H3
H2
H4
SECONDARY   230V
X4
X2
X3
X1
H4
H2
H3
H1
PRIMARY
    460V
H4
H1
X4
X1