It is not cooling
enough
External and
internal fans
work, compres-
sor works
all the time
Cooling unit under sized for
the heat dissipated inside
the enclosure
Change the cooling unit with another of
greater capacity
Inside fan
works, external
fan and com-
pressor work
irregularly
Antifreeze thermostat trig-
gered (where present)
• Clean the evaporator coil
• See if there are any obstacles inside the
enclosure to hinder the flow of recycling air
Insufficient gas in the cooling
unit
Call a refrigeration expert or the Canovate’s
Technical Assistance Service
Thermostat set point incor-
rect
Check thermostat set point
External and
internal fans
work, compres-
sor works
irregularly
High pressure safety switch
triggered:
• Ambient temperature over
the maximum working limit
• Heat exchanger coil
(condenser) either dirty or
clogged
• Ventilate the premises where the enclosure
is installed to keep ambient temperature
lower.
• Clean the exchanger with compressed air
and detergent
Thermal protector inside the
compressor triggered:
• Ambient temperature over
the maximum working limit
• Heat exchanger coil
(condenser) either dirty or
clogged
• Ventilate the premises where the enclosure
is installed to keep ambient temperature
lower.
• Clean the coil with compressed air and
detergent
Too much
condensate
forming
Enclosure door
open
Too much ambient air inside
the enclosure
This is not a malfunction of the cooling unit.
Close the enclosure door or disable the
cooling unit
Enclosure door
closed
Enclosure protection level is
below IP54
This is not a malfunction of the cooling unit.
Seal enclosure openings, i.e. for passage
and upward path of wires
The enclosure/cooling unit
connecting seal has been
fitted incorrectly
Check seal and remedy
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Micro Data Center Technical Manual 20
