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TESTING - TM-9-4120-428-140170
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TM-9-4120-428-14 Air Conditioner Horizontal Compact 9000 BTU/HR 208 Volt Three Phase 400 Hertz Model No. F9000H-4SPFI Manual
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REPLACEMENT - TM-9-4120-428-140172
TM 9-4120-428-14
UNIT MAINTENANCE
AIR CONDITIONER, HORIZONTAL, COMPACT
COMPRESSOR RUN CAPACITOR C4 INSPECTION, TESTING, AND REPLACEMENT
INITIAL SETUP:
Tools
Materials/Parts
Refrigeration Unit Service Tool Kit, WP 0000 00, Item
Capacitor
1
Equipment Condition
Remove Top Rear Panel (WP 0019 00)
2
3
2
HOUSING
1
BOTTOM PANEL (REF)
1
WARNING
Ground ALL capacitors before touching
INSPECTION
Check all capacitors for general condition and loose, broken, or damaged terminals.
NOTE
The ohmmeter test does not show the behavior of a capacitor under load. Such testing
requires special equipment, which is not economically practical for testing small
capacitors. Replace the capacitor if breakdown under load is suspected.
TESTING
1. Use a screwdriver with an insulated handle to discharge the capacitor.
2. Tag and disconnect ALL wire leads.
3. Use a multimeter set to read high resistance. Place the meter leads on terminals of the capacitor.
4. If the capacitor is good, the multimeter needle should move rapidly toward the low end of the scale, then slowly
return to infinity. If the needle moves to zero and remains steady, the capacitor is internally short-circuited. If the
needle does not move, the capacitor has an open circuit If a capacitor indicates a short circuit, an open circuit, or
other damage, replace the capacitor.
5. See WP 0028 00, Wiring Diagram. Connect ALL wire leads and remove tags.
0047 00-1

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