Rotex GSU 320, Operating Instructions Manual

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6 x Faults and malfunctions
32 BA ROTEX GSU - 09/2007
6.3 Fault codes
Control THETA 23R
Tab. 6-2 Fault codes for the ROTEX GSU for control THETA 23R (detected from the central unit)
Fault code Component/name Fault
10-0
Outside temperature sensor Interruption
10-1
Short circuit
12-0
Inflow temperature sensor, mixer circuit Interruption, mixer circuit pump is switched off, mixer motor is switched de-energised
12-1
Short circuit, mixer circuit pump is switched off, mixer motor is switched de-energised
13-0
Hot water storage tank temperature
sensor Interruption
13-1
Short circuit
14-7
Modem contact Fault signal
15-7
Burner blockage contact Fault signal
16-0
Flue gas temperature sensor (if installed) Short circuit
16-1
Interruption
16-7
Fault signal
17-0
Return flow temperature sensor Interruption
17-1
Short circuit
30-2
Burner No switching off
30-3
No switching on
33-5
Flue gas temperature Overshooting
70-0
Address Address collision of the BUS subscribers
70-1
Activity No T2B signal, check BUS cable and connections
70-6
Communication between control THETA
and CVBC automatic firing unit Interruption
71-0
EEPROM Internal fault
71-1
EEPROM faulty Internal fault