Dantherm CDT 30S MK III Service Manual page 16

User guide,
Replacing the
memory battery
14
cont.
If the hour counters cannot be read when disconnected from mains, it is probably due
to flat memory battery. Replacement procedure:
Action
Warning: Always disconnect from the mains before changing battery
1 Slacken the screws on
both side of the control
panel, and carefully lift
the panel up using the
top edge
2 Cut the cable tie holding the battery. Replace the battery, using a new cable tie
max. 2.5 mm wide.
Use Alkaline AAA batteries only
Illustration of PCB with battery included in the wiring diagram on page 29.
Continued on next page