
Stage 1 – The battery low symbol will appear in the display
Stage 2 – The words 'Low Battery' will appear in the display for 1
second each time a button is operated
Stage 3 – The unit will switch itself OFF and the message
'Replace Batteries' will appear permanently in the display.
The batteries should be changed at Stage 2 at the latest.
To replace the batteries of the CS027, please carefully pull down
the hinged battery cover on the front of the unit. Ensure they are
fitted correctly as indicated by the terminal markings in the
battery compartment.
Please dispose the old batteries responsibly
SERVICE AND REPAIR
This programmer is NOT user serviceable. Please do not
dismantle the unit. In the unlikely event of a fault developing
please refer to the RESETTING THE CS027 on page 23. If this
fails to resolve the problem please contact a local heating
engineer or a qualified electrician.
24
www.iQE.co.uk
Trade House BA22 8RT
Part Number P85553 Issue 2