
MAINTENANCE
21
TROUBLESHOOTING
Anomaly
Possible failures
Remedy
The fan does not work
There is no current
Check the breaker / fuse
The
thermostat
is
damaged
Check if there is power to the terminals of the fan (and / or 0-10V
signal for EC)
The cables are not
connected
Verify all electrical connections within the wiring diagram suppled
Condenser broken
Replace capacitor (AC motor)
Insufficient air flow
Dirty filter
Clean or replace the filter
Battery dirty
Clean the battery with lens cleaner
Selected speed low
Select a higher speed (max or med)
Noisy fan
Fan damaged
Visually check that the fan is undamaged SOSTITUTION
REQUIRED
Fan loose
Check that the fan is firmly secured to the machine frame
Speed to much high
Select a lower speed (min or med)
In summer or winter hot air comes
out cold air
Water too hot / cold
Check if temperature of inlet water is less than 10 ° C in summer or
more 40 ° C in winter.
Water flow low
Check if the dT between water input and output is at most 7K
Valve closed
Check that all manual valves are open to interception
Valve Actuator broken
Check that the actuator has opened the valve
Air in the battery
Purge the coil with the air valve
Condensation on discharge grille
Water too cool
Raise the water inlet temperature
Speed too low
Increase the fan speed (med or max)
Drip from the tank
Condensate
drain
clogged
Control the outflow of the exhaust pipe
Pan counterslope
Make sure the pan is level or tilted slightly towards the drain
Water pipes are not
insulated
Insulate all pipes chilled water
Faulty seals
Check seals of hose connections
Dirty pan
Clean the pan to allow the normal flow of condensate
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