Unit Mounting
Mounting the unit in the cellar has a
significant impact on the unit’s ability to
cool the air in the room. A law of nature
states that warm air rises while cool air
falls. The unit must be mounted high in
the room in order to capture the warm air
and replace with cool air. If the unit is
mounted low in the cellar, it has a
tendency to circulate the cool air at the
bottom of the cellar but has no ability to
draw the warm air from the higher space
in the cellar. This will result in an
inconsistent temperature range.
Thermostat
If the WhisperKOOL unit is not cooling
the room, it might be due to a faulty
thermostat. Use the following procedure
to test the thermostat.
1.) Unplug the WhisperKOOL unit.
2.) The PDT thermostat is attached
to the front of the WhisperKOOL unit
with two screws, one at each end of the
thermostat. Remove the screws and
detach the PDT.
3.) Unplug the PDT from the main unit,
and plug in the by-pass plug. The by-
pass plug lets you run the
WhisperKOOL without having the
thermostat installed.
4.) Plug the WhisperKOOL unit back in.
The unit will begin running and
cooling immediately. Let the unit run
Tr
oubleshooting Guide
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for 24 hours.
5.) After 24 hours, use an accurate
thermometer (preferably a high-
quality digital thermometer) to
measure the temperature of air
coming out of the WhisperKOOL
unit’s front fans. If it is cooling the
room, then the problem may lie with
the thermostat.
If the WhisperKOOL unit cools the room
without the PDT installed, then the
thermostat should be replaced. The by-
pass plug will allow the WhisperKOOL
unit to continue to function, but it will not
be able to monitor or maintain the correct
temperature automatically without the
thermostat.
If you continue to run the WhisperKOOL
on the by-pass plug without the
thermostat, you will need to turn off the
WhisperKOOL unit periodically to keep it
from icing up. We recommend cycling the
unit on and off every eight hours if
possible or as needed.
For replacement of the PDT, please
contact Customer Service. See Warranty
Service on page 22.
Condensation
Water Leaking, Front
Moisture condensation is the natural
result of cooling air. The WhisperKOOL
has an internal drain for removing
collected condensation from the
evaporator coil going to the compressor
pan where it is evaporated and dissipated
into the exhausting environment. Water
leaking from the front vents is caused by
build-up of dust from the air circulating
inside the cellar. This accumulation clogs
the drain line from the evaporator pan,
resulting in the overflow.
The only way to effectively prevent this
problem is to make sure that the
WhisperKOOL is installed in a relatively
dust-free environment.
Mount WhisperKOOL high in the room.
