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Worcester Greenstar CDi Compact Series User Manual

Worcester Greenstar CDi Compact Series
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14
FAULT FINDING
6 720 803 801 (2012/09)
7 FAULT FINDING
In the event that the boiler stops functioning or does not perform as expected, you can carry out a few simple checks. These checks
are some of the most common causes and are listed in the table below. Should the problem persist or if other alert codes are
displayed, then it will be necessary to contact the Worcester, Bosch Group.
Problem Cause Remedy
EA fault code flashing on
display
No gas supply/low gas supply pressure B Contact your gas supplier.
Condensate outlet blocked
B If it is safe to do so, check your condensate pipe
outlet for blockages, such as ice or foreign
objects.
Flue blocked
B If it is safe to do so, check your flue outlet for
damage or blockages.
Desired room temperature is
not reached
Thermostatic radiator valve(s) set too
low
B Increase thermostatic radiator valve setting(s).
Temperature control for central heating
flow on boiler set too low
B Increase central heating flow temperature control
setting
Air trapped in heating system
B Bleed radiators and re-pressurise the heating
system
Low system water pressure
B Re-pressurise the system, refer to page 12
Low temperature setting on the boiler
controls
B Increase settings on boiler controls
Desired room temperature too
high
Radiators are too hot B Turn down thermostatic radiator valves/room
thermostat
B Reduce central heating temperature by turning
down the Central Heating control on boiler
Heating stays on for too long Clock is incorrectly set B Check clock setting and adjust
No blue Operation/Fault
Indicator
Momentary power failure B Disconnect boiler supply, wait a few seconds then
reconnect.
Energy saving feature is activated
B Ask your installer to reset the blue light
Hot water temperature too low Temperature set too low on boiler
controls
B Check setting and adjust
Water flow at tap too high
B Reduce flow rate at tap
Air trapped in heating system
B Bleed radiators and re-pressurise the heating
system
Low system water pressure
B Re-pressurise the system, refer to page 12
Hot water temperature too high Temperature set too high on boiler
controls
B Check setting and adjust
Water flow at tap too low
B Increase flow rate at tap
Table 1 Fault finding

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Worcester Greenstar CDi Compact Series Specifications

General IconGeneral
ModelGreenstar CDi Compact Series
CategoryBoiler
TypeCombination
Efficiency RatingA
Fuel TypeNatural Gas
MountingWall-mounted
EfficiencyUp to 94%
Weight34kg
Dimensions (HxWxD)700mm x 420mm x 330mm

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