Owner's Manual

Page 14
Supply air flow is limited, and
or water is dripping from the
front of the system
Supply or return air is
blocked or restricted, and or
the evaporator coil is
freezing.
Verify that supply and
return air are not blocked
and duct work (if used) is
installed to specification,
remove or add duct as
needed, check air filter for
blockage. KWIB120xx
users check supply air fan
for correct rotation, refer to
Appendix B.
Fault Possible Cause Possible Solution
Condensate is not pumping. Water is below pumping
level, external line
restricted, line installed with
too high of lift.
Reservoir fills, and then
pumps. Check for line
crimping or restrictions and
proper line run height. Refer
to the user guide Section 5:
Built in Safeguards.
Evaporator coil is freezing Low or restricted air flow.
Undersized capacity, unit
constantly on, unable to
achieve set point. Low
return air temperature out
of factory specifications.
Evaporator door open,
mechanical system
malfunction.
Direct supply return air to
area of highest heat load,
check for blocked air flow
from the supply air, replace
air filters, adjust set point to
allow the unit to cycle, add
another KwiKool system or
larger capacity model, close
evaporator compartment
door, check for correct
rotation and inspect drive
belts on KWIB120XX
supply air blower for worn
condition or breaking, Install
service gauges to view
pressures.
Call 1-800-KwiKool.
Chatter or hum is heard
from the control box while
the system is operating.
Incoming source power is
poor or low voltage compo-
nent is faulty.
Check for proper voltage
selection on 208/230 volt
units, remove excess or
undersized power cable, and
check incoming power.
Call 1-800-KwiKool.
99 Flashes on display Ambient room temperature
over 99 degrees F.
Unit is working properly.
Lowering of room tempera-
ture will rectify the flashing.
59 degrees or lower
temperature flashes on the
room temperature display
and the system will not
operate.
Ambient room temperature
under 60 degrees F.
Limits of unit have been
reached. Operating tempera-
tures are 65 - 105 degrees F.