SCCB TYPE G-203-P00 Service Manual for Producers Page 17
PPUH „GECO” EDITION I PRINTOUT DATE 2014-04-15
IX. PROBLEMS AND THEIR REMOVAL
1. The display is off
even if GC203 is
connected to the
power supply
Check:
- if 220V voltage is present on the power supply terminals L and N
- correct connection of the actuator to the control panel
- remove and reinsert the ribbon sockets
- connect another ribbon
2. The compressor
will not start despite
its power-on
signaling
-red LED
Check:
- 230V voltage presence on terminals K and N - If present, then check the
compressor
- if not, then check correct connection of the actuator with the control panel
- connect another ribbon
3. Defrosting heater
does not switch on
Check:
- if there is voltage 230V on clamps as described on the casing of the
controller
- if there is, check the heater
- if not then check the connection of the executive module with a control
panel
- connect another ribbon
4. The light tube does
not go on
- presence of the 230V voltage at the terminals marked in the description
provided on the upper panel of the actuator module
- if it is present, then check a/ starter b/ light tube c/ choke
- if not, then check for correct connections between the actuator module and
the control panel
- replace the ribbon cable
5. Wrong
temperature
indications
Check:
- connections of the sensors to the connectors
- value of the parameter ‘d4’
- correct fastening of the sensor
- condition of the sensor cable – the cable can not show any damages
- carefully the appearance of the external surface of the sensor case for any
signs of mechanical damages.
6. The desired
temperature cannot
be set
Check:
value of the parameter ‘d0’ and ‘d1’ (d0<d1)
7. Blinking of dots on
the display, cannot
be turned off
Check :
- power supply voltage value
- condition of the power supply connectors
- tightening of the power supply connectors
- correct connection of the actuator to the control panel
- connect another ribbon
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