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PROBLEM SOLVING
GUIDE TO PROBLEM SOLVING
PROBLEM
POSSIBLE CAUSE
CHECK/CORRECTIVE ACTION
THE CHILLER DOES NOT WORK
The electrical panel has no power
supply
Check for mains power
Check that the main switch is
closed
The microprocessor control circuit
board has no power supply
Check that the IM8 automatic
auxiliary circuit switch is armed
Check that the fuses are active
The microprocessor control has
power supply but does not start
the unit.
Check for alarm conditions
HIGH OUTPUT PRESSURE OR
INTERVENTION OF HIGH
PRESSURE
PRESSOSTAT
Airflow to the condenser is
insufficient or the intake
temperature is too high.
Check for any re-circulation of
condensation air and that the
distances given in the section on
“Positioning the chiller” are
respected
Check that the temperature of the
condensation air is within the unit’s
function limits
Check that the coils / metal filters
are not dirty.
Check the fan rotation direction
The condensation pressure
control system is not efficient
Check the setting and correct
function of the fan speed regulator.
One or more fans is not working
Check for intervention of fan
protection
Re-set or change the faulty fans
There is air in the circuit, shown
by bubbles despite over-cooling
Evacuate and re-charge the circuit
There is too much refrigerant in
the circuit; the condenser is
partially flooded.
Excessive cooling of the liquid at
the condenser output; remove
some refrigerant from the circuit.
Dirty condenser or metal filters
Remove
obstructing
material
(leaves, paper, etc.)
Summary of Contents for Aquaflair 00152
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