5 | Servicing the system
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B1650222_en | Operating instructions PE1e Pellet
Clean the heat exchanger and WOS springs (with condensing boiler heat exchanger)
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Tap on “Boiler OFF” in order to turn off the boiler
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Switch off the boiler at the main switch and let the boiler cool down for at least one
hour
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Remove the pipe locking pin from the mounting plate and remove the WOS mount
along with the springs
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Clean WOS springs and heat exchanger pipes with the supplied stainless steel brush
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Clean the entire flue gas collection chamber using an ash vacuum
NOTICE! ONLY use the supplied stainless steel brush to clean all stainless steel
components!
Clean FGR duct (with condensing boiler heat exchanger)
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Remove left cover from the siphon and next to the induced draught unit fan
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Remove flexible FGR hose on the induced draught unit housing and boiler body
