Extreme Cold Weather - Bosch Worcester Greenstar 24 User Instructions

5.9

EXTREME COLD WEATHER

In some instances where the condensate pipe work is run
externally or in an unheated area, such as a garage, the
condensate pipe work can be at risk of freezing, even if well
insulated.
A frozen/blocked condensate pipe will cause the boiler to shut
down.
WARNING: Falling hazard!
Failure to follow this guidance may result in personal
injury.
B Only attempt to thaw a condense pipe that is at
ground level, and that is easily accessible.
B Never attempt to thaw a condense pipe that is at
height.
CAUTION: Pipe damage
B DO NOT use boiling water to thaw the condensate
pipe!
If the condensate pipe has frozen:
B Locate the blockage.
It is likely that the pipe is frozen at the most exposed point
outside the building or where there is an obstruction to flow.
This could be the open end of the pipe, at a bend or elbow, or
where there is a sag in the pipe in which condensate can
collect.
The location of the blockage should be identified as closely as
possible before taking further action.
6 720 801 019 (2012/05)
Operation
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