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FAULT FINDING
Problem Cause Remedy
Switch off appliance at
master switch, wait a few
seconds then switch on
again
Check setting
Check programmer
settings
Check setting
Desired room temperature
is not reached
Thermostatic radiator
valve(s) set too low
Room thermostat set too Increase room thermostat
low setting
Temperature control for
flow on boiler set too
low
Air trapped in heating
system
Desired room temperature
exceeded by large amount
Temperature rises instead
of falling
No display or display unit
does not respond
Hot water temperature too
low
Radiators are too hot
Clock is incorrectly set
Momentary power failure
Hot water tank
temperature set too low
Hot water not in timed
period on the programmer
Temperature control on
boiler set too low
Increase thermostatic
radiator valve setting(s)
Increase
temperature control
setting
Bleed radiators, if fitted to
a sealed system recharge
heating system
Turn down thermostatic
radiator valves / room stat
Check setting
FAULT FINDING
GREENSTAR CAMRAY UTILITY/UTILITY SYSTEM 12/18 - 18/25 - 25/32
8 716 111 983a (02.07)
13
MAINTENANCE
15


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