Version Nr. 1-1 - 20.06.2017
Doc. Nr. 9920250241
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13. Trouble shooting
Failure
Reason
Troubleshooting
Unit
doesn't
start
No power supply
Check the electrical connection
Cabinet temperature is lower
than set point
Wait until the set point is reached. The unit will then
start automatically. If the set point of the cabinet
temperature is too high, reduce it accordingly.
Door contact is open
Close the cabinet door or bridge the door contact.
Unit
doesn't
cool
Compressor is faulty
Please get in contact with one of our service
partners.
The circuit breaker of the
compressor got activated
Check the cooling capacity. In case the
cooling capacity is too small, install the unit
at a different place or add another cooling unit.
The evaporator and / or
condenser are extremely dirty.
Evaporator and /or condenser need cleaning
Evaporator
is iced up
Not enough refrigerant due to
leaking cooling circuit
Refill refrigerant and re-seal cooling circuit.
Please contact the manufacturer.
Ambient temperature is much
lower than the stated operating
temperature range
Install the unit at a different place. The ambient
temperature must be within the stated operating
temperature range.
The control cabinet is
not sealed properly.
The control cabinet needs re-sealing.
Fan or fan capacitor on
the cold side are faulty
Replace fan and/or fan capacitor.
Too much
condensate
Cabinet door not closed
Ensure that cabinet door is closed properly
The cabinet is not
sealed properly
The control cabinet needs re-sealing.
Incomplete gasket between
cooling unit and cabinet
Please check gasket
Uneven air circulation
inside the cabinet
Cabinet air intake and air
outlet are blocked
Ensure that both are unblocked and that air
can circulate
Cabinet volume too big for
this cooling unit
Check the cooling capacity. In case the cooling
capacity is too small, install the unit at a different
place or add another cooling unit.
Condenser fan
doesn't work
Fan is faulty
Replace fan
Evaporator fan
doesn't work
Fan is faulty
Replace fan
Note: Before you contact one of our service partners please press the test button of the
controller. Like this the fans and the evaporator are getting switched on independent of the internal
cabinet temperature. In cases of emergency you can contact us under one of the tel. numbers stated
on the last page.
14. Maintenance & Cleaning
The cooling unit is generally maintenance free and can be operated without filters in most
environments. For units with filters these should be checked, cleaned and if necessary replaced on a
regular basis. In addition the unit should have regular functional tests (approx. every 2,000 hours
depending on the grade of ambient pollution).
15. Maintenance