Geco G-202-P05 - Troubleshooting Common Issues; Troubleshooting Scenarios and Checks

Page 13 Revision I FROM 2012-09-20
X. TROUBLESHOOTING
Symptoms
Checks
1. The display is off
even if G-202 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:
- 220V 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. Drying heater
doesn’t switch on.
Check:
- presence of the 230V voltage at the terminals marked in the description
provided on the upper panel of the actuator module
- if not, then check for correct connections between the actuator module
and the control panel
- replace the ribbon cable
5. Incorrect
temperature
reading
Check:
- sensor connections to terminals
- value of the parameter ‘d4’
- correct installation of the sensor
- sensor cable condition – the cable must not have any signs of damage
- carefully examine the outer shell of the sensor for any signs of
mechanical damage
6. Can’t set the
required
temperature
Check:
- value of the parameters ‘d0’ and ‘d1’ (d0<d1)
7. Flashing dots on
display, can’t turn
on
Check:
- value of the power voltage
- condition of power connectors
- tightening of power connectors
- correct connection of the actuator module with the control panel
- replace the ribbon cable
8. Abnormal,
unusual behaviour
of the device
Check:
- presence of 230V voltage at the power supply terminals L and N
- condition of power connectors
- neutral wire connection of the cooling device
- condition of the electrical system and number of appliances connected
to the same phase