40MHH: Owner’s Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
15
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 2 on
page 17.
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. The air filter is under the top air inlet grill.
2. Grip the tab on the end of the filter, lift it up, then pull it towards
yourself.
3. 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.
4. Clean the large air filter with warm, soapy water. Be sure to use a mild
detergent.
5. Rinse the filter with fresh water, then shake off any excess water.
6. Dry it in a cool, dry place, and refrain from exposing it to direct
sunlight.
7. When dry, re-clip the air freshening filter to the larger filter, then slide it
back into the indoor unit.
Fig. 16 — Filter Tab
Fig. 17 — Filter Tab
Fig. 18 — Rinse the Filter
Fig. 19 — Air Freshening Filter
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
Filter Tab
(some units)
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
