eta eHACK 20-50 kW, Service Manual

Page: 19 / 76

Cleaning and maintenance Cleaning (customer)
19
Check firebed button and firebed switch
Check the mobility of the firebed button in the
combustion chamber by repeated lifting.
Fig. 2-21: Firebed button
The firebed switch on the front of the boiler must be
actuated when lifting.
Fig. 2-22: Firebed switch
Check refractory lining
Check the refractory lining of the primary and
secondary combustion chambers for damage and
cracks.
Replace combustion chamber cover
Reinsert the combustion chamber cover, ensuring that
it is properly centred.
Fig. 2-23: Combustion chamber cover
The convex surface of the combustion chamber
cover must point to the top of the boiler.
Mount cover on the front
Mount the cover on the front of the boiler.
Fig. 2-24: Cover