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46 47
COMPLAINT CAUSE SOLUTION
Unit Does Not Cool/ Heat Room
Sufciently, or Cycles On And Off
Too Frequently (continued).
• The outside temperature is below 60 °F
(16 °C).
• Do not try to operate your air conditioner in the
cooling mode when the outside temperature is below
60 °F (16 °C). The unit will not cool properly, and the
unit may be damaged.
• The digital control is set to fan cycling mode.
• Since the fan does not circulate the room air
continuously at this setting, the room air does not
mix as well and hot (or cold) spots may result. Using
the continuous fan setting is recommended to obtain
optimum comfort levels.
• The air conditioner has insufcient cooling
capacity to match the heat gain of the room.
• Check the cooling capacity of your unit to ensure it
is properly sized for the room in which it is installed.
Room air conditioners are not designed to cool
multiple rooms.
• The air conditioner has insufcient heating
capacity to match the heat loss of the room.
• Check the heating capacity of your unit. Air conditioners
are sized to meet the cooling load, and heater size
is then selected to meet the heating load. In extreme
northern climates, room air conditioners may not be able
to be used as a primary source of heat.
Unit Runs Too Much.
• This may be due to an excessive heat load
in the room.
• If there are heat producing appliances in use in the
room, or if the room is heavily occupied, the unit will
need to run longer to remove the additional heat.
• It may also be due to an improperly sized unit.
• Be sure to use exhaust vent fans while cooking or
bathing and, if possible, try not to use heat producing
appliances during the hottest part of the day.
• This may be normal for higher efciency
(EER) air conditioners.
• The use of higher efciency components in your new
air conditioner may result in the unit running longer
than you feel it should. This may be more apparent, if
it replaced an older, less efcient, model. The actual
energy usage, however, will be signicantly less
when compared to older models.
• You may notice that the discharge air
temperature of your new air conditioner
may not seem as cold as you may be
accustomed to from older units. This
does not; however, indicate a reduction
in the cooling capacity of the unit.
• The energy efciency ratio (EER) and cooling
capacity rating (Btu/ h) listed on the unit’s rating
plate are both agency certied.
Troubleshooting Tips continued
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