Fault Finding - Worcester Greenstar Camray External 12/18 User Instructions

Problem
Desired room temperature
is not reached
Desired room temperature
exceeded by large amount
Temperature rises instead
of falling
No display or control unit
does not respond
Hot water temperature too
low
GREENSTAR CAMRAY EXTERNAL 12/18 - 18/25 - 25/32
8 716 112 711b (09.07)

FAULT FINDING

Cause
Thermostatic radiator
valve(s) set too low
Room thermostat set too
low
Boiler temperature control
set too low
Air trapped in heating
system
Radiators are too hot
Clock is incorrectly set
Momentary power failure
Hot water cylinder
temperature set too low
Hot water not in timed
period on the programmer
Boiler temperature control
set too low
Remedy
Increase thermostatic
radiator valve setting(s)
Increase room thermostat
setting
Increase
temperature control
setting
Bleed radiators; if fitted to
a sealed system recharge
heating system
Turn down thermostatic
radiator valves / room stat
Check setting
Switch off appliance at
master switch, wait a few
seconds then switch on
again
Check setting
Check programmer
settings
Check setting
FAULT FINDING
13