
07.2019
18/20
H39.WANS012EN-01
AERO
Assembly instructions
Basic.mounting.box
8
Rectification of malfunctions
Problem
Possible cause
Solution
Increased noise
development.during.the.
performance of the test
run
Ceramic heat accumulator
and.exhaust.air.filter.incl..filter.
bracket.are.not.seated.in.the.
centre.of.the.casing
•
Check.the.position.of.the.ceramic.heat.accumulator.
and.exhaust.air.filter.incl..filter.bracket.and.adjust.if.
necessary
•
Perform.test.run.(see.page.
Slider on motor is not suspended
properly
•
Open.the.inspection.flap.and.check.the.position.of.the.
slider
•
Perform.test.run.(see.page.