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Maintenance
GREENSTAR CDi CLASSIC ErP – 6 720 815 728 (2015/05)
4.2 FAULT FINDING
This table gives information on basic operating system
problems.
Problem Cause Remedy
EA fault code flashing on
display
No gas supply/low gas supply pressure Contact your gas supplier.
Condensate outlet blocked If it is safe to do so, check your condensate pipe
outlet for blockages, such as ice or foreign
objects.
Flue blocked 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 Increase thermostatic radiator valve setting(s)
Temperature control for central heating flow
on boiler set too low
Increase central heating flow temperature control
setting
Air trapped in heating system Bleed radiators and refill heating system
Low system water pressure Re-pressurize the system, refer to page 13
Low temperature setting on the boiler
controls
Increase settings on boiler controls
Desired room temperature
too high
Radiators are too hot Turn down thermostatic radiator valves/room
thermostat
Reduce central heating temperature by turning
down the central heating control on boiler
Heating stays on too long Clock is incorrectly set Check setting and adjust
Hot water temperature
is too low
Temperature set too low on boiler controls Check settings and adjust
Water flow at tap too high Reduce flow rate at tap
Low system water pressure Re-pressurize the system, refer to page 13
Hot water temperature
is too high
Temperature set too high Check settings and adjust
ON/OFF indicator is not
illuminated
Momentary power failure Disconnect boiler supply, wait a few seconds then
reconnect.
Table 4 Fault finding
15


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