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10 Specifications subject to change without notice. OM-40MAQ-07
CLEANING, MAINTENANCE AND
TROUBLESHOOTING
Periodic Maintenance
Periodic maintenance is recommended to ensure proper operation of
the unit. Recommended maintenance intervals may vary depending on
the installation environment, e.g., dusty zones, etc. Refer to Table 1 on
page 12.
Cleaning the Coil
Clean the coil at the beginning of each cooling season, or when
necessary. Use a vacuum cleaner or a long-bristle brush to avoid
damage to the coil fins.
Cleaning the Air Filters
Remove and clean the air filters once a month. A clogged air
conditioner can reduce the cooling efficiency of your unit, and can
also be bad for your health.
NOTE: If air filters show signs of excessive wear or are torn, they
must be replaced. Contact your local dealer for replacement filters.
1. Lift the front panel of the indoor unit.
Fig. 13 — Lift the front panel
2. Press the tab on the end of filter to loosen the buckle, lift it up, then
pull it towards you.
3. Pull the filter out.
Fig. 14 — Grab the filter
Fig. 15 — Pull the filter out
4. If your filter has a small air freshening filter, un-clip it from the
larger filter. Clean the air freshening filter with a hand-held
vacuum.
Fig. 16 — Air freshening filter
5. Clean the large air filter with warm, soapy water. Be sure to use a
mild detergent.
Fig. 17 — Clean the filter
6. Rinse the filter with fresh water, then shake off excess water.
7. Dry it in a cool, dry place, and refrain from exposing it to direct
sunlight.
8. When dry, re-clip the air freshening filter to the larger filter, then
slide it back into the indoor unit.
Fig. 18 — Replace the filter
9. Close the front panel of the indoor unit.
ELECTRICAL SHOCK HAZARD
Failure to follow this caution may result in personal injury or death. Always
turn off power to the system before performing any cleaning or maintenance to
the system. Turn off the outdoor disconnect switch located near outdoor unit.
Be sure to disconnect the indoor unit if on a separate switch.
CAUTION
EQUIPMENT DAMAGE/OPERATION HAZARD
Failure to follow this caution may result in equipment damage or improper
unit operation.
Operating the system with dirty air filters may damage the indoor unit and
could cause reduced cooling performance, intermittent system operation,
frost build-up on indoor coil or blown fuses.
CAUTION
CUT HAZARD
Failure to follow this caution may result in personal injury. The coil fins are
very sharp. Use caution when cleaning.
Always wear safety protection.
CAUTION
)LOWHU+DQGOH
Air freshening filter
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage. When cleaning
the front panel, do not use water hotter than 105
°
F (40.6
°
C) and do not pour
water onto the fan coil. Do not use abrasive or petroleum based cleaners as they
may damage the front panel.
CAUTION
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