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CAUTION: Risk of damage to the boiler.
▶ Do not operate the boiler if the flue
terminal is obstructed or damaged in any
way.
6
FAULT OR BREAKDOWN
This boiler is supported in the UK and Eire by Worcester, Bosch
Group.
Specialist Service Engineers are available to attend a
breakdown occurring on this boiler.
Invoices for attendance and repair work
carried out on this boiler by any third party will
not be accepted.
•
No charge will be made for parts and/or labour providing:
A boiler fault is found and the boiler is within the guarantee
period. Reasonable evidence of this must be supplied on
request. i.e. the Benchmark Checklist.
•
A call-out charge will be made where:
– The boiler is outside the guarantee period.
– Evidence cannot be provided that the first year service
inspection has been carried out (i.e. an entry in the
Benchmark Checklist).
– Our Field Service Engineer finds no fault with the
boiler.
– The cause of breakdown is misuse or with other parts of
your plumbing/heating system, or with equipment not
supplied by Worcester, Bosch Group.
TECHNICAL SUPPORT
No boiler fault is found on over 30% of all
service calls.
In the case of a suspected fault, refer to the
fault finding section of this guide.
In the event of a boiler fault or breakdown please contact
Worcester, Bosch Group appointments team on
0330 123 9559.
Your advisor will arrange for an engineer to call with the
minimum of delay; under normal circumstances this will be
from 1 - 3 working days (excluding weekends and bank
holidays) for priority breakdown situations (no hot water and/
or heating).
GREENSTAR CDi CLASSIC REGULAR
ErP
– 6 720 815 726 (2015/05)
7
TIPS ON ENERGY SAVING
HEATING ECONOMICALLY
The boiler is designed to provide a level of comfort while
keeping gas consumption and the resulting environmental
effect as low as possible. The gas supply to the burner is
controlled according to the level of demand for heat. The boiler
continues to operate with a low flame if the demand of heat
reduces. The technical term for this is modulating control.
Modulating control reduces temperature fluctuations and
provides even distribution of heat throughout the home. This
means that the boiler may stay on for relatively long periods but
will use less gas than a boiler that continually switches on and
off.
NEW CONTROL SYSTEMS
Upgrade your heating control system if necessary with the
latest equipment available. The minimum level of control is a
programmer, interlocking room thermostat and thermostatic
radiator valves.
CENTRAL HEATING SYSTEMS WITH ROOM THERMOSTATS
AND THERMOSTATIC RADIATOR VALVES
The central heating control on the boiler should be set to
maximum rated temperature of the central heating system. The
temperature of each room can be set individually (except room
with the room thermostat) using the thermostatic radiator
valves. If damaged, replace the plastic tops used to adjust the
thermostatic radiator valve. It is also advisable to manually
adjust all thermostatic radiator valves every 2-3 weeks to
prevent them sticking.
ROOM THERMOSTATS
Reducing the setting of the room thermostat by 1 °C can reduce
fuel consumption by up to 10 %.
ROOF INSULATION
Around 30 % of the heat loss from a property is through the
roof. Replace any old insulation with new insulation, preferably
of around 200 mm thickness or more.
WINDOW FRAMES
Single glazed windows, particularly those with steel frames,
can loose a great deal of heat. Consideration should be given to
replacement with PVCu or wooden framed double glazing
units.
CURTAINS
Lined curtains, or heavier full length curtains can provide
excellent insulation. However, always ensure that the curtains
do not drape over radiators.
Fault or Breakdown
13
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