MovinCool Office Pro 63 Service Manual - Manual (Page 62)

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