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LCA
FAULT
High evaporation pressure
Defrosting absent or incomplete Error in parameter settings
RG66000986 – Rev.00
Possible causes
Water T too high
The 4-way valve has failed to work Check
28
Corrective actions
Check the thermal load and/or
efficiency
of
the
function.
Check
the
efficiency
thermostatic valve
Check the setting of the start and
end defrost parameters on the
microprocessor
Check whether defrosting water is
properly drained from the coils
Check
the
uniformity
refrigerant
circuit
temperatures at the top and bottom
of the coils: the maximum thermal
differential allowed is 10 °C. Check
the refrigerant level
whether
it
is
energized and deenergized.
thermostat
of
the
of
the
outlet
regularly
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