HyPower-Geko Maintenance and Troubleshooting
FläktGroup DC-2014-0022-GB 2018-05/R5 • Subject to modifications 129
Unit does not cool/cools insuffi-
ciently (chilled water)
Fan not switched on Switch on fan
Air volume flow of unit too low Select higher speed
Air intake or discharge areas blocked Clear or clean air flow paths
Fan blocked/faulty Check fan, replace if necessary (technical per-
sonnel only);
also see page 97
Filter is dirty Replacing filter
Cooling medium is not cold Switch on chiller unit
Switch on the circulating pump
Vent the unit
Water flow rate too low Check the pump line
(technical personnel only)
Check pipe run balance and adjust using calcu-
lated pressure drop
(technical personnel only)
Too high setpoint temperature adjusted on con-
trol panel
Decrease setpoint temperature on control panel
Control panel placed in cold air, e.g. near a door Place control panel in appropriate position
(technical personnel only)
Control valve fails to open Replace faulty control valve (technical person-
nel only)
Water leakage in unit area Condensate tray drainage blocked Clean condensate drain and check for sufficient
pitch, then clean and fill trap (completed by
technical personal if necessary)
Chilled water lines not (correctly) insulated Insulate chilled water lines
(technical personal, if required)
Unit is not hung horizontally Align the unit and hang it horizontally (techni-
cal personnel only)
Leaking heat exchanger or hydraulic connec-
tions
Check heat exchanger, vent and valve connec-
tions for leak-free state
If necessary, re-tighten connections, clean
screw insert or reseal connections
(nur Fachpersonal)
On valves, check screw connections for ease of
movement, clean sealing surfaces and replace
seals, if necessary
(technical personnel only)
Check soldered joints between collector and
heat exchanger tubes and on heat exchanger
deflection bends for leaks; if any leaks found,
replace heat exchanger (technical personnel
only)
Controller switches on continu-
ously
Control panel located in the wrong place (e.g.
near open door or window)
Position control panel in appropriate location
where room temperature can be measured rep-
resentatively (qualified technical personnel
only)
Heating medium temperature too high/low Correct the external temperature curve on the
controller of the boiler system. Check the con-
trol mode and adjust accordingly (technical
personnel only)
Cooling medium temperature
too high/too low
Correct the inlet temperature on the controller
of the refrigeration system. Check the control
mode and adjust accordingly (technical per-
sonnel only)
Other heating elements with individual control
are in the same pipe run (e.g. radiators with
thermostat valves)
Separate medium supply if necessary. Check
the control mode and adjust accordingly (tech-
nical personnel only)
Condensate pump
Fault Possible cause Action/remedy
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