Servicing; Maintenance; Programmable Room Thermostat Battery; Replacement - Bosch Worcester Greenstar Comfort II RF Installation And Operating Instructions Manual

Servicing

8 Servicing
These units can not be serviced.
Should either unit fail to function correctly check that the:
▶ Programmable room thermostat settings are correct
▶ RF signal link between the units is set up correctly, 
sections 6.2 and page 15 Radio settings
▶ Programmable room thermostat batteries are the correct
type, fitted correctly and are not exhausted.If in doubt, fit
new batteries  section 9.1.
9

Maintenance

These units require no maintenance apart from replacing used
batteries in the programmable room thermostat.
The outer casing can be wiped clean using a dry cloth, do not
used polish or detergents.
9.1

Programmable room thermostat battery

replacement

If under normal operation the battery low symbol appears, the
batteries require replacing within 60 days or the programmed
settings will be lost.
Replace the batteries with the same type: LR6/AA 1.5V
alkaline.
1
pmam
Fig. 17 Low battery indication
Battery access
To remove the room thermostat from the wall mounting plate:
1. Insert a suitable flat bladed screwdriver into the slot on the
bottom edge of the device
2. Twist the screwdriver gently until the bottom catches are
released.
3. Separate the Programmable room thermostat from the its
wall plate.
18
Fig. 18
Battery replacement
Replace the spent batteries with new ones of the same type
(AA), ensuring that they are installed in the correct orientation.
Insert the batteries ensuring that the positive + end of the
battery is inserted into the positive + terminal of the holder.
Fit the Programmable room thermostat to the wall plate,
locating the catches [1] on the top edge and then snap the
bottom edge into place.
6720810965-11.1Wo
Fig. 19
1.
2.
Remove back plate
1
Replace batteries
Comfort II– 6720810965 (2017/02)
6720810965-09.1Wo