Operating, Service And Fault Displays; Service Displays; Fault Displays; 14.2.1 Fault Overview - geminox THRs 0.9-9 C Installation And Maintenance Instructions Manual

Operating, service and fault displays

14 Operating, service and fault displays
The control unit monitors all safety and control components.
The service and fault displays facilitate simple diagnosis using tables 35
and 36 below.
14.1

Service displays

If the symbol appears on the display during normal operation, an
inspection is required.
To obtain details on service display 105:
▶ Press the info button.
Only one service display is ever shown.
Service Service
display code Description
105 1 Burner runtime exceeded
105 2 Number of burner starts exceeded
105 3 Inspection interval reached
105 10 Replace heating controller batteries
105 22 Water pressure 3 heating circuit too
low (dropped below lower pressure
limit 3)
Table 35 Service displays
14.2

Fault displays

The presence of a fault is indicated on the display by symbol
To obtain details on the fault display:
▶ Press the info button.
Only one fault display is ever shown. The display sequence is made in
accordance with the priority specified in Tab. 36.

14.2.1 Fault Overview

Fault code Description
10 Fault outside temperature sensor
20 Fault at boiler temperature sensor
28 Fault at flue gas temperature sensor
32 Fault at flow temperature sensor for heating
circuit 2
40 Fault at return temperature sensor
50 Fault DHW tank temperature sensor
52 Fault potable water temperature sensor
57 Fault at temperature sensor (DHW
circulation pump)
60 Fault at room temperature sensor 1
65 Fault at room temperature sensor 2
68 Fault at room temperature sensor 3
73 Fault at solar collector sensor
82 LPB address collision
83 BSB wire short circuit/no communication
84 BSB wire address collision
85 BSB wireless communication fault
91 Data loss in EEPROM
Table 36 Fault displays
42
Priority
6
6
6
6
9
.
Remedy
▶ Check sensor ( Tab. 37, 38, page 47); replace if required.
▶ Check lead for breaks or short circuits; replace if required.
▶ Check lead for breaks or short circuits; replace if required.
▶ Check sensor ( Tab. 37, page 47); replace if required.
▶ Check lead for breaks or short circuits; replace if required.
▶ Check call up (addressing) of the connected appliances.
▶ Check lead for breaks or short circuits; replace if required.
More than one controller is assigned to the same heating circuit.
▶ Assign one of the controllers to heating circuit 2 (refer to the
supplied accessories instructions).
▶ Check the connection of the wireless module to the appliance
electronics ( Fig. 15, page 16).
▶ Perform a communication test (see accessories supplement).
▶ Delete addressing for the heating controllers and reassign the
heating controllers (see accessories supplement).
▶ Replace the main PCB of the control unit.
THRs 0.9-9/2-17/5-25/10-35/10-50 – 6 720 808 441 (2016/03)
Priority
6
9
6
6
6
6
6
6
6
6
6
6
3
8
3
8
9