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This appliance is supported in the UK by
Worcester Heat Systems Ltd. - part of the
Bosch Group.

Specialist factory trained Service Engineers are
available to attend a breakdown occurring on
this appliance.

No charge will be made for parts and/or
labour providing:

An appliance fault is found and the appliance
has been installed within the past 24 months.
Reasonable evidence of this must be 
supplied on request.

A call-out charge will be made where:

The appliance has been installed for over 24 
months

OR

Our Field Service Engineer finds no fault with
the appliance (see 

Note

).

OR

The cause of breakdown is misuse or with 
other parts of your plumbing/heating system, 
or with equipment not supplied by Worcester
Heat Systems Ltd.

Note. NO APPLIANCE FAULT IS FOUND ON
OVER 30% OF ALL SERVICE CALL OUTS.

Please read this guide carefully to gain a good
understanding of the operation of your
appliance. In the case of a suspected fault,
refer to the fault finding section of this guide.

If in doubt contact our Technical Helpline

In the event of an appliance fault or breakdown
please contact our Service Department. Your
service administrator will arrange for an
Engineer to call with the minimum of delay.
Under normal circumstances this will be from 1
to 3 working days (excluding weekends) for
priority breakdown situations (no hot water
and/or heating).

Invoices for attendance and repair work carried
out on this appliance by any third party will not
be accepted.

FAULT OR BREAKDOWN

FAULT OR BREAKDOWN

WORCESTER BOSCH GREENSTAR HIGHFLOW 440

6 720 611 731a (08.04)

16

MAI

NTE

NANCE

Summary of Contents for GREENSTAR HIGHFLOW 440

Page 1: ...MBINATION BOILER FOR SEALED CENTRAL HEATING SYSTEMS AND MAINS FED DOMESTIC HOT WATER USER INSTRUCTIONS CUSTOMER CARE GUIDE THIS APPLIANCE IS FOR USE WITH NATURAL GAS OR LPG Cat II 2H3P TYPE C13 C33 NATURAL GAS 47 311 82 LIQUID PETROLEUM GAS 47 311 83 GB IE ...

Page 2: ...MAKE OR MODEL OF APPLIANCE THE INSTRUCTIONS APPLY IN THE UK ONLY AND SHOULD BE FOLLOWED EXCEPT FOR ANY STATUTORY OBLIGATION IF YOU ARE IN ANY DOUBT CONTACT WORCESTER BOSCH TECHNICAL HELPLINE DISTANCE LEARNING AND TRAINING COURSES ARE AVAILABLE FROM WORCESTER BOSCH THIS APPLIANCE MUST BE INSTALLED BY A COMPETENT PERSON FAILURE TO INSTALL CORRECTLY COULD LEAD TO PROSECUTION PLEASE LEAVE THIS GUIDE T...

Page 3: ...witching the appliance on off 8 Setting the central heating temperature 8 Controlling central heating 8 Setting the hot water temperature 9 Summer mode hot water only 10 Frost protection 10 Fault condition 10 ENERGY SAVING TIPS ON ENERGY SAVING 11 MAINTENANCE MAINTAINING YOUR APPLIANCE 14 FAULT FINDING 15 FAULT OR BREAKDOWN 16 GUARANTEE YOUR GUARANTEE 17 GUARANTEE REGISTRATION 18 INTRODUCTION USIN...

Page 4: ...e than 40 years This heritage means all products are of exceptional quality and proven reliability The Greenstar range in particular is extremely energy efficient converting up to 97 of gas consumed into heat offering you economical running costs and value for money It sits in the SEBUK Band A amongst the top energy rated appliances available There is also the assurance of our no nonsense 2 years ...

Page 5: ... paper thinners paints etc inside or within the vicinity of the appliance Chemically aggressive substances such as halogenated hydrocarbons containing chlorine or fluorine compounds can corrode the appliance and invalidate any warranty FITTING MODIFICATIONS Fitting the appliance and any controls to the appliance may only be carried out by a competent engineer in accordance with the Gas Safety Inst...

Page 6: ... is a condensing appliance and the terminal will at times give out a plume of water vapour This is quite normal CONDENSATE DRAIN The appliance also produces quantities of condensate which is discharged regularly by a pump within the boiler to drain ROOM THERMOSTAT A room temperature controller eg Worcester TR2 room temperature controller with night setback module should be fitted to control the ce...

Page 7: ...out 45 C which will reduce the risk of scale formation in these hard water areas VENTILATION This is a room sealed appliance and does not require any air for combustion from inside the house If the appliance is fitted into a cupboard or a compartment is built around the appliance after installation then the compartment must be separated from the boiler space by a perforated non combustible partiti...

Page 8: ...nted compartment clearances See Fig b The diagram opposite shows the minimum space required to install and service the boiler inside an unvented compartment Space required for unvented areas with a removable door or panel This space can be reduced to 50mm for one side only as long as both the side clearances add up to the total of both the side measurements shown or more Airing cupboard clearances...

Page 9: ...OR BURNER ON 8 MASTER SWITCH 9 CENTRAL HEATING TEMPERATURE CONTROL 10 HOT WATER TEMPERATURE CONTROL 11 SYSTEM PRESSURE GAUGE 12 FILLING LOOP CONNECTION 1 2 3 4 5 6 7 8 9 10 11 12 REMOVE THE BOILER CASING FRONT PANEL TO GAIN ACCESS TO THE SYSTEM PRESSURE GAUGE FILLING LOOP CONNECTION 1 LIFT 2 PULL CONTROLS WORCESTER BOSCH GREENSTAR HIGHFLOW 440 6 720 611 731a 08 04 7 USING YOUR APPLIANCE ...

Page 10: ... 15 minutes Switching off Switch off the appliance at the master switch 0 The green indicator lamp goes out The display on the optional timer if fitted will continue to operate until the battery back up is exhausted SETTING THE CENTRAL HEATING TEMPERATURE Turn the central heating temperature control to the desired level When the burner is lit the red indicator lamp is illuminated CONTROLLING CENTR...

Page 11: ...C Clockwise limit approx 65 C ECO indicator A lit indicator shows there is no DHW demand from the integral or external programmer and indicates a night time setting In this state the boiler will not fire when there is a DHW demand but will produce a limited amount of warm water depending on store temperature During this demand the boiler pump will be operated OPERATING THE APPLIANCE ECO OPERATING ...

Page 12: ...he appliance is in operation The display shows a fault code and the button may also flash If the button flashes Press and hold the button until the display shows The appliance will then start up again and the display will show the central heating flow temperature If the button does not flash Switch the appliance off and then on again at the master switch The appliance will start up again and the c...

Page 13: ...ess gas than an appliance that continually switches on and off Central heating systems with room thermostats thermostatic radiator valves The central heating control on the boiler should be set to the maximum rated temperature of the central heating system or to position E when the maximum central heating water temperature obtained is 75 C The temperature of each room can be set individually excep...

Page 14: ...s Draughts Try to ensure that draughts around doors windows letterboxes and keyholes etc are reduced by using a suitable draught excluder Warning do not block or seal any air vents that are installed to ensure the central heating boiler operates safely Room thermostats Reducing the setting of the room thermostat by 1 C can reduce fuel consumption by up to 10 New control systems Upgrade your heatin...

Page 15: ...ant that the plastic tops of all valves are always in position and not cracked or damaged so as to prevent accidents Care should be taken when vacuum cleaning carpets so as to avoid damage to valves and pipework The heating system and the outputs of the radiators have been carefully selected by your installer The temperature obtainable in any given room is dependent on all radiators being operated...

Page 16: ...checks from a competent person beyond the initial 2 year guarantee period If you would like to know more about a Worcester Bosch service contract please tick the appropriate box on your warranty registration card If your Greenstar Highflow 440 should fail to operate correctly or requires servicing please contact the Worcester Bosch Service Department see inside front cover for details MAINTAINING ...

Page 17: ...d 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 temperature dial set too low Increase thermostatic radiator valve setting s Increase CH flow temperature control setting Bleed radiators and recharge heating system Turn down thermostatic ra...

Page 18: ...t supplied by Worcester Heat Systems Ltd Note NO APPLIANCE FAULT IS FOUND ON OVER 30 OF ALL SERVICE CALL OUTS Please read this guide carefully to gain a good understanding of the operation of your appliance In the case of a suspected fault refer to the fault finding section of this guide If in doubt contact our Technical Helpline In the event of an appliance fault or breakdown please contact our S...

Page 19: ...n of Worcester Heat Systems Ltd when requested Any product or part returned for servicing under the guarantee must be accompanied by a claim stating the model serial number date of installation Worcester Heat Systems Ltd will not accept responsibility for damage caused by faulty installation neglect misuse or accidental damage or the non observance of the instructions contained in the installation...

Page 20: ...cient customer service by establishing a reference and permanent record for your boiler This does not affect your statutory rights For your own record Check that the Benchmark Log Book has been completed by your installer or service engineer GUARANTEE REGISTRATION Model Serial No See identity label inside appliance casing Type size Date of installation GUARANTEE REGISTRATION WORCESTER BOSCH GREENS...

Page 21: ...TIONS CUSTOMER CARE GUIDE EXCELLENCE COMES AS STANDARD Worcester Heat Systems Ltd Bosch Group Cotswold Way Warndon Worcester WR4 9SW Tel 01905 754624 Fax 01905 754619 www worcester bosch co uk 6 720 611 731a 08 04 ...

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