Extreme Cold Weather - Worcester Greenstar CDi Compact Series User Instructions

ALERT CODES
If the blue operation/fault indicator light on the front of your boiler is flashing and a warning triangle
code on the screen, e.g. EA, reset your boiler, refer to page 10.
Press , if the reset has been successful the word Reset will be displayed with the tick mark to confirm that the reset was
reset
successful.
After a few seconds of a successful reset the boiler display will return to a normal display, the display sequence is shown in figure 5
below.
Fig. 5 Resetting a fault condition
Due to the internal safety systems of your Greenstar CDi Compact boiler, some codes cannot be cleared by a simple reset. Please
contact Worcester, Bosch Group for further assistance.
When calling Worcester, Bosch Group about a fault, it will be useful to quote the alert code and three digit number under the alert
code, e.g. EA and 227. If there is a fault that cannot be reset by you, the user, then a service engineer visit will be necessary.

7.1 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 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.
B Thaw the frozen pipe.
The pipe can be thawed by applying a hot water bottle, a microwaveable heating pack (the sort used for muscular aches and
pains) or a cloth soaked in hot water to the exterior of the pipe, close to the point of blockage.
Hot water, but not boiling, can also be poured onto the pipe from a watering can or similar container. Care must be taken at
pedestrian areas where this water may freeze and create a slip hazard.
B Once the pipe has been thawed the boiler must be reset, press the reset button for five seconds and wait two to three minutes
for the boiler to restart.
B If the boiler does not restart, contact Worcester, Bosch Group Appointments Team on: 0844 892 3000.
B Contact your installer in order to find a permanent solution to the problem.
6 720 803 801 (2012/09)
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Reset
FAULT FINDING
is displayed with an alert
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Eco
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