Daikin Clima-Flex CLIC Series, Installation, Operation And Maintenance Manual

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Troubleshooting Chart
Problem Possible causes Possible corrective actions
Compressor
does not run.
Main or compressor disconnect switch
open.
Circuit breaker closed.
Fuse damaged, circuit breakers open. Check the electrical circuit and possible short circuit, line to ground,
loss of connections or motor windings causing the failure. Replace
the fuse and reset the compressor brakes, only after detecting and
correcting the cause of the fault.
Thermal overloads have tripped. Overloads are self-resetting. Check supply voltage, operating
amps, cycle times and mechanical operations. Allow time for
automatic reset.
Faulty contactor or coil. Replace.
System shutdown by equipment protection
devices.
Determine the type and cause of the shutdown and correct it before
restarting the equipment. For example, low or high pressure, water
freezing, etc.
No cooling required. Wait until the unit calls for cooling.
Liquid line solenoid does not open. Repair or replace the solenoid. Check wiring.
Motor electrical problems. Check for open, shorted or bubbled motor.
Loose wiring. Check all wire connections and tighten all terminal screws.
Compressor
makes noise or
vibrates
Compressor running in reverse. Check that the unit and compressor are on the correct phase of
the line voltage.
Improper piping or supports on suction or
discharge.
Reposition, add or remove hangers.
Compressor insulator bushing worn. Replace.
Compressor mechanical failure. Check for possible problem in compressor failure and replace.
Low oil level. Check the possible problem before it damages the compressor.
High discharge
pressure.
Dirty condenser coil. Clean the coil.
Fan failure.
Check electrical circuit and fan motor.
Check the electrical circuit and possible problems before changing
the motor fan.
Coolant overcharge. Remove excess coolant and check the liquid subcooling.
Fan motor running in reverse. Check that the unit and fan motor are correctly supplanted by the
line voltage.
No or failed condenser caps. Check or replace condenser caps on front and rear of unit.
No condensables in the system. Remove the non-condensables in the system and replace the
charge.
TROUBLESHOOTING CHART