Worcester 27Ri Compact

FAULT FINDING AND DIAGNOSIS
Greenstar Ri Compact 6 720 646 610 (2013/12) 49
7.1.2 GROUP 2 FAULT CODES
Fig. 106 Group 2 flash sequences
Flash
sequence
Type of fault Fault Possible solutions/check
Light OFF No boiler demand - boiler is OK
Light ON Heating demand on boiler- boiler is OK
Group 2 Flashing codes
6LockingSensor test failed On power up all safety sensors are checked, the
check failed.
Reset the boiler by turning the control knob anti-
clockwise to the reset position.
7LockingSafety temperature too high The main heat exchanger has overheated.
Maximum temperature 105°C.
Reset the boiler by turning the control knob anti-
clockwise to the reset position.
8 Blocking MAX safety thermostat activated Flue gas thermostat overheat
9LockingReturn temperature too high Boiler overheat.
Reset the boiler by turning the control knob anti-
clockwise to the reset position.
10 Locking Flow temperature too high -
Supply sensor exceeded 110°C
Primary flow sensor overheated.
Reset the boiler by turning the control knob anti-
clockwise to the reset position.
1
34
2
1
34
2
1
34
2
1
34
2
1
34
2
1
34
2
1
34
2
1
34
2
1
34
2
1
34
2
6720646610-67.2Wo
Fault code group 2
1 to 5 ashes preceeded by 4 fast ashes
6
7
8
9
10
5 seconds off 5 seconds off
5 seconds off
5 seconds off
5 seconds off
5 seconds off
5 seconds off
5 seconds off
5 seconds off
5 seconds off