Quantcast Figure 4-49. Fuse (F1) and Fuseholder (XF1) 4120-01-069-1321)">

 

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FUSE (F1) AND FUSEHOLDER (XF1) - 506780192
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TM-5-4120-359-14 Air Conditioner Split Package 18 000 BTU/HR Cooling 30 000 BTU/HR Heating 208 Volt 3 Phase 400 Hertz Manual
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RECTIFIER (CR1) AND CAPACITOR (C1) TEST
TM 5-4120-359-14
(2) Remove fuse.
(3) Look at fuse to see if the center element is broken or melted. Replace fuse if found bad.
(4) Using multimeter, test fuse for continuity. Replace fuse if no continuity.
NOTE
A blown fuse often indicates problems with other electrical parts.
b. Test/Inspect fuse holder (XF1)
(1) Using screwdriver, remove six screws and lock washers and lift the top cover from the electrical module.
Figure 4-49. Fuse (F1) and Fuseholder (XF1)
(2) Check that fuseholder is not cracked, broken or otherwise damaged. Replace if bad.
(3) Check that terminals and wire lead connections are tight. Repair loose connections. Replace fuseholder if
terminals are broken.
(4) Be sure the fuse is in place and known good.
(5) Using multimeter, check fuseholder continuity between terminals. If no continuity, replace fuseholder.
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