COMMISSIONING
STARTING THE APPLIANCE
IMPORTANT: Never run the appliance when the appliance/system is empty or partially filled.
Switching the appliance on/off:
1 Turn on mains power supply Turn on any external controls
Set the thermostatic radiator controls to maximum temperature
Set the clock/programmer to continuously ON and the room thermostat to maximum temperature
2 A - On/off button
B - On/off and fault indicator (BLUE)
C - Central heating temperature control
D - Burner indicator (GREEN)
E - Reset button
F - Service button
G - ECO button
H - System pressure gauge
I - Cover or optional programmer
Press power button (A) and the power on indicator (B) illuminates BLUE.
3 Turn the boiler thermostat control (C) to maximum. The burner on indicator (D) illuminates GREEN when the burner has lit.
4 If the boiler fails to light the BLUE power indicator (B) and reset button (E) will flash alternately.
To reset press and hold the reset button
(E) for 2 seconds. The boiler will be reset.
I
CAUTION: DO NOT PRESS POWER
INDICATOR (B) TO RESET BOILER.
A 
H 
D 
E
F 
G
C
B
31
STARTING THE APPLIANCE
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior 8 716 107 336b (11/05)
