Maintenance
2. Open fuse holder with flat screwdriver and Remove open fuse from fuse holder and replace
with new fuse of same ampere rating.
Figure 18 Fuse Holders on FA-20L Front Panel
Heat Exchanger Cleaning
Heat exchanger cleaning to remove collected dust and debris is required regularly to maintain
proper compressor operation. Cleaning is recommended twice a year, but it may be necessary
more often, depending on the operating environment.
In order to clean the heat exchanger:
1. Stop the compressor and confirm the fan has stopped.
2. Using a portable vacuum cleaner, remove dust and debris for the outside (suction side) of
the heat exchanger. See Figure 19. Cleaning the inside surface is not necessary. Do not
remove the fan guard to clean the inside surface.
A soft brush or soft brush attachment may be used to help remove dust.
Figure 19 Clean Heat Exchanger
Fuse
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