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