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40MHHA: Owner's Manual
CLEANING, MAINTENANCE AND TROUBLESHOOTING
CAUTION
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.
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 2 on page 13.
CAUTION
Only use a soft, dry cloth to wipe the unit clean. If the unit is especially dirty,
you can use a cloth soaked in warm water to wipe it clean.
Do not use chemicals or chemically treated cloths to clean the unit.
Do not use benzene, paint thinner, polishing powder or other solvents to clean
the unit. They can cause the plastic surface to crack or deform.
Do not use water hotter than 104°F (40°C) to clean the front panel. This can
cause the panel to deform or become discolored.
Cleaning the Air Filters
A clogged air conditioner can reduce the cooling efficiency of your unit,
and can also be bad for your health. Make sure to clean the filter once
every two weeks.
1. Lift the front panel of the indoor unit.
2. First press the tab on the end of filter to loosen the buckle, lift it up, then
pull it towards you.
3. Now pull the filter out.
4. If the filter has a small air freshening filter, unclip it from the larger
filter. Clean the air freshening filter with a hand-held vacuum.
5. Clean the large air filter with warm, soapy water. Be sure to use a mild
detergent.
6. Rinse the filter with fresh water, then shake off any excess water.
7. Dry the filter in a cool, dry place, and keep it out of direct sunlight.
8. Once dry, re-clip the air freshening filter to the larger filter, then slide it
back into the indoor unit.
9. Close the front panel of the indoor unit.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Fig. 14 — Filter Tab
Fig. 15 — Remove the Filter
Remove the air freshening filter from the
back of the larger filter (some units)
Fig. 16 — Remove the air freshing filter
Fig. 17 — Rinse the filter
Do not touch air freshening (Plasma) filter for at least 10 minutes after
turning off the unit.
CAUTION
Before changing the filter or cleaning, turn off the unit and disconnect its
power supply.
When removing the filter, do not touch the metal parts in the unit. The sharp
metal edges can cut you.
Do not use water to clean the inside of the indoor unit. This can destroy
insulation and cause electrical shock.
Do not expose filter to direct sunlight when drying. This can shrink the filter.
11
Filter Tab
CAUTION
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