page 14 SERVICE MANUAL FOR PRODUCERS SBR TYPE GC201
PPUH „GECO” EDITION I PRINTOUT DATE 18-04-30
Conditions of switching on of defrosting when the unit is switched
on:
00 – beginning of operation without defrosting
01 – if during defrosting power supply is disconnected, defrosting will
be switched on
02 – defrosting after every switching on of unit power supply
VIII. PROBLEMS AND THEIR REMOVAL
Table 3: Problems and method of their elimination
1. Display is not lit
although GC201 is
connected to mains
Check:
- if there is voltage 230V on feeding clamps L and N
2. Compressor does
not switch on
although it is
signalled that it is on:
red diode
Check:
- if there is voltage 230V on clamps P1 and N – If there is voltage, check the
compressor
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
4. Error of
temperature
indication
Check:
- connection of sensors to connectors
- the value of parameter ‘d4’
- if the sensor is fixed correctly
- the condition of the cable of the sensor: the cable can not have any defects
- in detail the lookout of external surface of sensor shell to see whether it has
not been damaged mechanically.
5. impossible to set
the required
temperature
Check:
the value of parameters ‘d0’ and ‘d1’ (d0<d1)
6. dots on the
display flash, no
possibility to switch it
on
Check :
- the value of feeding voltage
- condition of feeding connectors
- whether feeding connectors are tightened up
7. ‘’abnormal’
‘strange’ operation of
the unit
Check:
- if there is voltage 230V on feeding clamps L and N
- condition of feeding connectors
- ‘zeroing’ of cooling unit
- condition of electric system and the number of units connected to one
phase
- if the type of thermostat is right (label with description of outlets) for the unit
- whether the thermostat was not wetted by water or other liquid
- if thermostat is not exposed to humidity or sudden changes of temperature
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