14 | Maintenance EN Operating manual Ruby
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Fig.78: Removing flush-mounting cover
16) Remove flush-mounting cover and use a vacuum
cleaner to clean the interior space of the flue gas dis-
tributor.
17) Reattach and mount all parts on to the pellet stove
again.
14.4 Changing the storage battery
A CR2032 battery is located in the control unit.This battery enables the control unit to save certain
data - e.g. time, date, heating times etc. even during a power failure, or when the mains power supply
is disconnected.
If the battery is flat, the control unit will continue to function normally.However, in the event of a power
failure, the above-mentioned data will be lost.These data must then be saved afresh.
Fig.79: Changing the storage battery
Change the battery every 2 years, as follows:
Changing the battery:
1) “ON” switch. Control systems must remain switched
on, as otherwise the data will be lost.
2) The battery is located on the central control unit. To
replace it, the right-hand side cladding of the pellet
stove must first be removed. Then remove the cover
of the control unit.
3) Use insulated pliers or a similar tool to remove the old
battery from the holder.
4) Insert the new battery, taking note of the correct po-
larity.