GB
13 What to do if ...
... in spite of your care and attention a fault occurs?
Check the following points first. If the fault is not then cleared, call an authorized specialist.
13.1 General errors
- No message via the service indicator
Fault
Unit fails to cool,
fan in an internal airflow circuit
is running.
Unit fails to cool sufficiently.
Unit only cools irregularly
Condensate accumulates in
switch cabinet.
Condensate fails to drain.
Condensate runs out of the unit The condensate evaporator is defective or too much
14 Warranty Conditions
Warranty becomes null and void:
•
in case of improper usage of the unit, noncompliance with oper-
ating conditions or non observance of instructions;
•
If operated in rooms in which corrosives or acids are present in
the atmosphere;
•
in case of damage caused by contaminated or jammed filters;
•
if a non-authorised person interrupts the cooling circulation,
modifies the unit or changes the serial number;
•
in case of damage caused by transport or by accidents;
•
for the exchange of parts by non-authorized personnel.
In order to maintain your warranty rights please observe the follow-
ing when returning the unit:
•
Include a detailed description of the defect and the SRO (RMA)
number issued by Pfannenberg with the cooling unit.
•
Enclose proof of delivery (delivery note or copy of invoice).
•
Return the unit together with all accessories; use the original
packaging or packaging of equivalent quality, send the unit
freight prepaid and covered by an adequate transport insurance.
Observe the hints on transport mentioned in section 2.
085 408 152a
Possible cause(s)
Temperature setting too high.
Threshold values for usage exceeded.
Lack of coolant.
Heat exchanger contaminated.
Fan in internal airflow circuit faulty. Fan in external
airflow circuit faulty.
Air not circulating properly inside the switch cabinet.
Coding switch incorrectly set or defective.
Blow-out temperature too low.
Switch cabinet not sufficiently sealed.
Condensate drainage clogged.
condensate accumulates.
Switch cabinet not sufficiently sealed.
Remedy
Check temperature setting.
Check ambient temperature and internal load.
Call authorized specialist, check unit for leaks.
Clean heat exchanger.
Call authorized specialist, replace fan.
Check assemblies and air circulation inside switch cabinet.
Air intake and exhaust into/from cooling unit into switch
cabinet must be unimpeded.
Set higher temperature at thermostat.
Close switch cabinet door.
Remedy leakage at switch cabinet.
Clean condensate drainage. Condensate drainage hose
must be inclined downward without showing a bend.
Replace the fuses for the condensate evaporator.
Remedy leakage at switch cabinet.
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