Troubleshooting Guides

Iceberg Series

Iceberg-Logo

FAULTPOSSIBLE CAUSEPOSSIBLE SOLUTION
Unit displays CF, Audio alarm fails to clear on start up or while operatingExternal Condensate Tank is full. Condensate bypass jack or condensate float switch jack is not installed or not positioned correctly. Water level switch is engagedEmpty External Tank (if using). Make sure thank is upright and level. Unplug bypass plug or tank plug and reinstall to assure good connections. System automatically resets when fault condition is corrected.
Unit Displays CP and Audio alarm is sounding during start up or while operating.Microprocessor board has detected high water level in the condensate pump. Inspect condensate pump for over flow and proper operation, check condensate line for a clog or crimping. Resets automatically upon fault correction, or call 1-800-KwiKool if the problem persist.
Unit Displays HP, 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 II. C. 4 of the Owner's Manual). Check condenser motors and/or blowers for proper operation. On KIB12023 or KIB12043 check VFD (motor drive) for trip. Reset if necessary. High pressure is a manual reset type. To reset, open filter door. The button is located above the filter. Press button to reset (you should feel a click).
Unit Displays LP, Audio alarm is sounding during start up or while operating.Microprocessor board has detected low pressure. This alarm might cycle on and off.Check air filter and replace if dirty. Make sure nothing is blocking the filter inlet. Check for icing on coil. Resets automatically when fault condition is corrected. Call 1-800-KwiKool if condition continues.
Unit Displays A1, Audio alarm is sounding during start up.Phase Monitor (if equipped) has detected incoming power issue on equipped systems.See Troubleshooting Guide for systems equipped with a phase monitor (Appendix - Part B of the Owner's Manual).
Audio alarm fails to clear on start up or while operating, unit displays FP.Microprocessor has detected freezing on the evaporator coil if the system has a factory installed freeze sensor. (Special order)Check for freezing on the evaporator coil and turn the system off to let it thaw out, call 1-800-KwiKool if your system is not equipped with a freeze sensor. Auto resets upon correction.
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 of the Owner's Manual.
System is ON but the microprocessor board resets the time delay (flashing F or C) when the compressor attempts to start.Microprocessor board detects voltage drop below operating parameters.Confirm the integrity of your source power, check for proper wire size and length of power extension cable. Be sure the circuit is dedicated to only the operation of your KwiKool.
Power is supplied but control is blank Low voltage circuit is not engagedCheck source power breaker and verify incoming power to connector, reset switch on low voltage transformer in KIB120XX and KIB6043 systems. Call 1-800-KwiKool for assistance.
System trips breaker on start upIncoming 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.
System starts up and cools but the condenser discharge air exhaust fan ramps up and slows down or the condenser discharge fan stops and starts.Normal operating condition especially in low temperatures. Only the KIB120 or units with optional ultra-low ambient temperature controls ramps up and slows down. All other models stop and start. No action required, see sections IV C. 2 of the Owner's Manual
Note: To avoid excessive fan cycling, discharge return air must not be below the specifications of your KwiKool system.
Display shows 32 and unit will not turn on cooling.No connection of temperature sensor to Microprocessor. Temperature Sensor malfunction.Call 1-800-KwiKool for instructions.
Supply air flow is limited, and or water is dripping from the front of the systemSupply 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 is installed to specification, remove or add duct as needed, check air filter for blockage. KIB120xx users check supply air fan for correct rotation, refer to Appendix B of the Owner's Manual.
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 of the Owner's Manual.
Evaporator coil is freezingLow 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 KIB120XX 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 component 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.
Discharge air exhaust fan stops and the system alarms HP during operation. KIB120XX only.Condenser drive has detected a fault with the incoming electrical power or is not receiving an operating signal.Check condenser motor drive (VFD) for trip, reset if needed. Note displayed fault code on the drive and call 1-800-KwiKool if the problem persist.
99 Flashes on displayAmbient room temperature over 99 degrees F.Unit is working properly. Lowering of room temperature will rectify the flashing.
60 Flashes on displayAmbient room temperature under 60 degrees F.Limits of unit have been reached. Operating temperatures are 65 - 105 degrees F.
Power is supplied but control is blank Low voltage circuit is not engagedCheck source power breaker and verify incoming power to connector, reset switch on low voltage transformer in KWIB120XX and KWIB6043 systems. Call 1-800-KwiKool for assistance.
Supply air flow is limited, and or water is dripping from the front of the systemSupply 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 of the Owner's Manual.
Evaporator coil is freezingLow 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.
Unit displays A1 Audio alarm sounding during start up, phase monitor displays, lock out “Front Fault” red lightPhase monitor detects reverse phasing, lost phase or improper power incoming.Exchange any line voltage
wire with the other, verify incoming power. Auto reset upon correction.
Unit displays A1, Audio alarm is sounding during start up, phase monitor
displays, lock out “Front Fault” low volt red light.
Phase monitor detects voltage lower than factory setting.Verify incoming power, slowly raise voltage adjust
knob on the phase monitor to match incoming power. Auto reset upon correction.
Unit displays A1, Audio alarm is sounding during start up, phase monitor displays, lock out “Front Fault” high volt red light.Phase monitor detects voltage higher than factory setting.Verify incoming power, Slowly lower voltage adjust knob on the phase monitor to match incoming power.
System starts up but goes into visual and audible alarm A1 when the compressor starts.Phase monitor detects voltage drop. Observe the phase monitor on start for fault lights and adjust the monitor accordingly, verify incoming power. Auto reset upon correction. Check wire size and voltage drop.
Unit displays A1, Alarm is sounding during start up or during operation, phase monitor displays “Back Fault” red light.A fault has been detected from one of the unit’s condenser motors.Inspect motor components for faulty or loose connections and proper operation, Call 1-800-KwiKool for guidance.
KPACII Series

KPAC-II-Logo

FAULTPOSSIBLE CAUSEPOSSIBLE SOLUTION
Unit displays CF, Audio alarm fails to clear on start up or while operatingInternal Condensate Tank is full, or condensate float switch jack is not installed or not positioned correctly. Water level switch is engagedEmpty internal Tank.(see section ll paragraph B of your Owner's Manual) Unplug tank plug and reinstall to assure good connections. System automatically resets when fault condition is corrected.
Unit Displays AL, 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 VI. paragraph C of your Owner's Manual). 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).
Audio alarm fails to clear on start up or while operating, unit displays FP.Microprocessor has detected freezing on the evaporator coil if the system has a factory installed freeze sensor. (Special order)Check for freezing on the evaporator coil and turn the system off to let it thaw out, call 1-800-KWIKOOL if your system is not equipped with a freeze sensor. Auto resets upon correction.
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 in Owner's Manual.
System is ON but the microprocessor board resets the time delay (flashing F or C) when the compressor attempts to start.Microprocessor board detects voltage drop below operating parameters.Confirm the integrity of your source power, check for proper wire size and length of power extension cable. Be sure the circuit is dedicated to only the operation of your KwiKool.
Power is supplied but control is blankLow voltage circuit is not engagedCheck source power breaker and verify incoming power to contractor, Call 1-800-KWIKOOL for assistance.
System trips breaker on start upIncoming 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 temperature sensor to Microprocessor. Temperature Sensor malfunctions.Call 1-800-KWIKOOL for instructions.
Supply air flow is limited, and or water is dripping from the front of the systemSupply 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 is installed to specification, remove or add duct as needed, check air filter for blockage.
Evaporator coil is freezingLow or restricted air flow; undersized capacity, unit constantly on, unable to achieve set point; low return air temperature out of factory specifications, 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, 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 component is faulty.Check for proper incoming voltage, remove excess or undersized power cable.
Call 1-800-KwiKool.
99 Flashes on displayAmbient room temperature is over 99 degrees F.Unit is working properly. Lowering of room temperature will rectify the flashing.
59 or lower temperature Flashes on displayAmbient room temperature is less than 60 degrees F.Limits of unit have been reached. Operating temperatures are 65 - 105 degrees F.
CeilingMaster

Ceiling-Master-Logo

FAULTPOSSIBLE CAUSEPOSSIBLE SOLUTION
Unit does not operateThermostat has no powerCheck breaker
Unit does not operatePower interruptionThe unit has auto restart and will automatically restart after a 2 minute safety delay when power is restored. (some 3rd party thermostats require a manual reset)
Unit does not operateBlockage of air ductCheck ducting for any blockages for excessive bend radius’
Unit does not operateEPO N/C switch openCheck the EPO/Fire alarm contacts for a N/C condition. Install the original factory jumper and retest.
Low or no coolingCondenser blockedMake sure that the condenser inlets and outlet is not blocked. Verify that the condenser intake air is not overheated due to lack of ventilation of condenser heat.
Low or no coolingThermostat malfunctionTest thermostat for proper outputs
Low or no coolingDirty / Blocked filtersClean/replace air filter
Low or no coolingExcessive duct staticEvaporator ducting should not exceed 30’ or equivalents and bend radius should be larger than twice of duct diameter.
No Cooling with Alarm SoundingHigh pressure switch actuated1) Check condenser fan motors for operation
2) Check for over heating of condenser because of inadequate ducting of condenser heat.
3) After checking 1 and 2 reset HPS by pressing the reset button.
No Cooling with Alarm SoundingLow pressure switch actuatedPotentially low on refrigerant. Call qualified Technician. This is not User serviceable.
No Cooling with Alarm SoundingCondensate pump overflowCheck to make sure condensate line is not kinked or obstructed. If alarm still sounds after checking line for restrictions, call a Service Technician.
KPO Series

KPO-Logo

FAULTPOSSIBLE CAUSEPOSSIBLE SOLUTION
Red alarm light and audible
alarm fails to clear on start
up, Phase Monitor and
displays lock out “Front
Fault” red light.
Phase Monitor detects
phasing issue or improper
power incoming.
Exchange any line voltage
wire with the other, verify
incoming power.
Red alarm light and audible
alarm fails to clear on start
up, Phase Monitor and
displays lock out “Front
Fault” low volt red light.
Phase Monitor detects
voltage lower than factory
setting.
Verify incoming power,
slowly raise voltage adjust
knob to match incoming
power.
Red alarm light and audible
alarm fails to clear on start
up, Phase Monitor displays
lock out “Front Fault” high
volt red light.
Phase Monitor detects
voltage higher than factory
setting.
Verify incoming power,
slowly lower voltage adjust
knob to match incoming
power.
System sounds audible
alarm only.
A condition exists with the
mechanical system involving
pressure or condensate
flow.
See Advanced Troubleshooting
Guide of the Owner's Manual (section XII), or
call: 1-800-KwiKool
System starts up but is not
cooling.
System is in time out,
control is set above room
temperature or control is
adjusted out of operating
parameters.
Wait 3 minutes, review
section VI/F of the Owner's Manual. Set up control.
System with Phase Monitor
starts up but goes into
visual and audible alarm
when the compressor
starts.
Phase Monitor detects
voltage drop.
Observe the Phase Monitor
on start for fault lights and
adjust accordingly, verify
incoming power. If no fault
light is present see
Advanced Troubleshooting
Guide of the Owner's Manual (section XII).
Power is supplied but
control is blank.
Low Voltage circuit is not
engaged.
On 12-ton models turn on
built in breaker, all models
verify incoming power to
contactor, reset switch on
low voltage transformer.
Control displays and
operates but unit is not on
when selector switch is in
the ON position.
This condition only occurs in
systems without a phase
monitor, incoming power is
not correct.
Verify incoming power to
contactor, correct as
needed.
System starts up and cools
but hot air exhaust fan
speeds up and slows down.
Normal operating condition
especially in low temperatures.
No action required, see
section VII/G of the Owner's Manual.
Cool air flow is limited,
water is dripping from the
front of the system.
Supply or return duct is
collapsed, blocked or not
installed, filters need to be
replaced and/or the
evaporator coil is freezing as
a result of the above.
Verify that supply and return
ducts are installed to
specifications, remove or
add duct as needed, check
air filter for blockage.
Restart when thawed.
Condensate is not pumping.Water is below pumping
level.
Reservoir fills, Check for line
crimping.
System sounds audible
alarm only, display.
Mechanical system has
detected high water level in
the condensate pump.
Inspect condensate pump for
overflow and proper operation
call KwiKool at: 1-800-
594-5665, check condensate
line for clog or crimping.
Resets automatically upon
correction.
System sounds audible
alarm only, display.
Mechanical system has
detected high pressure.
Correct condition with air
flow in or out of the
condenser, inspect/replace
condenser drive belts, check
condenser motor for proper
operation, check condenser
drive (VFD) for trip, reset if
needed. The high pressure
switch requires manual
reset. The pressure switch
is located in the service
compartment on the
compressor discharge line.
System sounds audible
alarm only, display.
Mechanical system has
detected low pressure.
Install service gauges to view
pressure readings below 20
PSI. Check for icing on the
evaporator coil or low return
air temperature. Resets
automatically upon correction.
KPO red fault light on
control panel is on. Phase
Monitor displays lock out.
“Back Fault” 2 red lights.
Incoming source power is
poor, low voltage component
is faulty.
This is not adjustable through
the Phase Monitor, check for
proper voltage selection on
208/230 volt units and
correct incoming power.
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.
Service door open or off,
mechanical system malfunction.
Review duct engineering,
direct return air duct to area
of highest heat load,
replace air filters, adjust set
point to allow unit to cycle,
add more KwiKool units or
capacity, close service
compartment door. Install
service gauges to view
pressures.
Control Displays E1Appears when up or down
key is pressed when not in
programming mode.
Operate in program mode.
If E1 appears when no keys
are pressed.
Control displays E2Appears when control
settings are not properly
stored in memory.
Check all settings and
correct if necessary.
Control displays EPAppears when the probe is
open, shorted or sensing a
temperature that is out of
range.
Check to see if the sensed
temperature is out of range.
If not, check for probe
damage by comparing it to
a known ambient temperature.
Control displays EEAppears if the EEPROM
data has been corrupted.
Control must be replaced.
Call KwiKool at:
1-800-594-5665.
Control displays CLAppears if calibration mode
has been entered.
Remove power to the
control for at least 5
seconds. Reapply power
and if CL message still
appears, control must be
replaced. Call us at
1-800-KwiKool
Hot air exhaust fan
(condenser fan) stops and
the High Pressure Switch
trips while the compressor is
operating.
Condenser drive has
detected a fault with the
incoming electrical power or
is not receiving an operating
signal.
Check condenser motor
drive (VFD) for trip, reset if
needed. Write down the
displayed fault code on the
drive and call KwiKool at
1-800-594-5665 if the
problem persist.
PHP Heat Pump

PHP-Logo

FAULTPOSSIBLE CAUSEPOSSIBLE SOLUTION
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AtticMaster

Attic-Master-Logo

FAULTPOSSIBLE CAUSEPOSSIBLE SOLUTION
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