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Page 11
Unit Displays AL and Audio
alarm is sounding during
start up or while operating.
Microprocessor board has
detected high pressure. The
High Pressure switch is
tripped.
High pressure is normally
caused by reduced
condenser air flow. Check
for restriction in ducting.
Check for condenser air
system ventilation (see
section V:B). Check
condenser motors and/or
blowers for proper operation.
High pressure is a manual
reset type. To reset, press
the button labeled HP reset
located in the condenser
make-up air inlet on the back
of your KwiKool (you should
feel a click when resetting).
System is ON and display is
showing ON but unit is not
supplying conditioned air.
System is in time out (F or
C is flashing), control is set
above room temperature or
control is adjusted out of
operating parameters or not
in the correct operational
MODE.
Wait 2 minutes, review
System Operations guide.
Fault Possible Cause Possible Solution
Power is supplied but
control is blank
Low voltage circuit is not
engaged
Check source power
breaker and verify incoming
power to connector. Call
1-800-KWIKOOL for
assistance.
System trips breaker on
start up
Incoming power is incorrect,
breaker is undersized or
faulty, and or power cable is
too long and or undersized.
Verify the circuit and power
cable is within the systems
specifications, consult with
your electrician or call
1-800-KWIKOOL for
guidance.
Display shows 32 and unit
will not turn on cooling.
No connection of tempera-
ture sensor to Micropro-
cessor. Temperature
Sensor malfunction.
Call 1-800-KWIKOOL for
instructions.
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 incoming
voltage; remove excess or
undersized power cable.
Call 1-800-KWIKOOL.
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