Marksa CSSW 50, Technical Notice

Page: 94 / 100

Page 94 / 100 Technical Notice V1.0 / 01.09
13 Breakdowns
HP contact is open (optional on CSW50 through CSW150)
- Ambient temperature is too high
✔
Cut off the power supply
Cool down the local environment
Restart the unit by pressing the
pressure switch RESET button
(1)
Restart the power supply
- Filters (optional) fouled
✔
Clean or replace the filters
✔
Faulty exhaust fan Clean the
exhaust fan or replace it.
- Condenser fouled
✔
Clean the condenser.
The thermostat no longer controls the
compressor
- Faulty probe (the alarm message
Er...
on the thermostat display)
✔
Replace the probe
- Faulty thermostat
✔ Replace the thermostat
The unit will not restart after a RESET (if option Y programmable problem recovery
controller is not installed)
- Problem in the LP section
✔
Call a refrigeration engineer
- If the refrigeration unit won't perform after a careful check following our procedures,
please call a local refrigeration engineer.
Fig. 13-2 : Pressostat
(1)