Pfannenberg EB 30 WT - Page 19

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19
 The fan is broken
Replace the fan
 Too high ambient
temperature
Check that the chiller is located in a place that can guarantee suitable
ventilation of the refrigerating unit. Check also that the ambient temperature
does not exceed +40°C.
Note: after solving the cause of
the fault, start the chiller by
pressing the reset button located
on the external body of the
pressure switch itself (see the
picture)
Compressor
Problem
Cause
Possible corrective Action
The compressor works continuously and the chiller can’t control the liquid temperature:
- too low temperature of the liquid
- too high temperature of the liquid
Too low temperature
Broken thermostat (contact blocked)
Replace the thermostat
Too high temperature
Broken thermostat
Replace the thermostat
Not enough Freon in the unit
Please ask for the service by a refrigeration engineer
Too high heat load
Possible wrong application, to be checked with our staff
Pump
Problem
Cause
Possible corrective Action
No flow rate in the circuit
Pump is down
Check the right rotation of the electrical motor