5 | Servicing the system
52
B1650222_en | Operating instructions PE1e Pellet
Check rinse water cleaning (with condensing boiler heat exchanger)
r
Tap on “Boiler OFF” in order to turn off the boiler
r
Allow the boiler to cool for at least one hour
DO NOT switch off the main switch of the boiler!
r
Remove the cover and thermal insulation on the condensing boiler heat exchanger
r
Open the inspection cover
In the event of light soiling of the heat exchanger pipes, the flushing device can be
checked to ensure proper cleaning. In the event of heavy soiling the heat exchanger must
first be cleaned,
"Clean the heat exchanger and WOS springs" [
r
Manually activate the flushing device on the controller:
System menu
Manual
Manual operation
r
In the "Manual operation" menu set the “
calorific value heat exchanger
manual flushing – only in boiler off/standby
“ parameter to “
YES
“ for
approx. 10 seconds
Ä
When exiting the menu, the flushing process finishes
r
Check the cleaning status of the heat exchanger pipes
Ä
In the case of uneven cleaning, check the nozzles on the flushing device for
blockages (lime scale, dirt, etc.)