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Bosch GREENSTAR HEATSLAVE II EXTERNAL 12/18, User Instructions & Customer Care Manual, Page: 13 / 20

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Bosch GREENSTAR HEATSLAVE II EXTERNAL 12/18 User Instructions & Customer Care Manual Download Page 13

MAINTAINING YOUR BOILER

Your new boiler represents a long term investment in a reliable, high quality product.

In order to realise its maximum working life and to ensure it continues to operate at peak
efficiency and performance, it is essential that servicing and maintenance checks are performed at
least once a year by an OFTEC engineer or other suitably qualified person. 

If you would like to know more about servicing options from Worcester, Bosch Group, please visit

worcester-bosch.co.uk

. Please tick the appropriate box on your warranty registration card for

further details of the Worcester, Bosch Group Service Contract .

When your boiler requires servicing please contact a Worcester, Bosch Group contact centre
(see inside front cover for details).

In addition to the service contract we are pleased to offer a one-off annual service or breakdown
call out for your boiler.

Maintenance tips:

Regularly check the oil level in the tank.

Do not obstruct the flue outlet or the air inlet.

USE IN HARD WATER AREAS:

In exceptionally hard water areas a device to prevent scale formation may be fitted. Installation of
a scale inhibitor assembly should be in accordance with the requirements of the local water
company. An isolating valve should be fitted to allow for servicing.

MAINTAINING YOUR BOILER

GREENSTAR HEATSLAVE II EXTERNAL 12/18, 18/25 & 25/32

6 720 805 212a (07.2013)

11

MAI

NTE

NANCE

Summary of Contents for GREENSTAR HEATSLAVE II EXTERNAL 12/18

Page 1: ...5 32 FLOOR STANDING OIL FIRED CONDENSING BOILER CONVENTIONAL FLUE ROOM SEALED FLUE FOR SEALED CENTRAL HEATING SYSTEMS WITH MAINS FED DOMESTIC HOT WATER THE BOILER IS FOR USE WITH KEROSENE 28 SECOND OIL ONLY UK USER INSTRUCTIONS CUSTOMER CARE GUIDE ...

Page 2: ...GROUP BOILER MODEL S STATED ON THE FRONT COVER OF THIS MANUAL ONLY AND MUST NOT BE USED WITH ANY OTHER MAKE OR MODEL OF BOILER THE INSTRUCTIONS APPLY IN MAINLAND UK ONLY AND SHOULD BE FOLLOWED EXCEPT FOR ANY STATUTORY OBLIGATION IF YOU ARE IN ANY DOUBT CONTACT THE WORCESTER BOSCH GROUP TECHNICAL SUPPORT THIS BOILER MUST BE INSTALLED BY A OFTEC REGISTERED COMPETENT PERSON FAILURE TO INSTALL CORRECT...

Page 3: ...d to heating comfort Thank you for purchasing a Greenstar oil fired condensing boiler from Worcester Bosch Group The company prides itself on manufacturing boilers to the strictest quality control standards throughout every stage of production Worcester Bosch Group has led the field in innovative boiler design and performance for more than 50 years This heritage means all products are of exception...

Page 4: ...r must be kept clear of chemically aggressive substances which can corrode the boiler and invalidate any warranty FITTING MODIFICATIONS Fitting the boiler and any controls to the boiler may only be carried out by a competent engineer in accordance with the relevant Installation Regulations Flue systems must not be modified in any way other than as described in the fitting instructions Any misuse o...

Page 5: ... into place 4 Push the front panel up behind the top panel push in and secure in place with the screws A using tool B CONTROLS CONTROLS USING YOUR BOILER 3 A B C D E F G H I J K L M N A Spanner return button B Reset button C ECO button D Boiler LCD display E Central heating temperature control F Scroll up button G OK Select confirmation button H Scroll down button I Demand fault indicator blue J P...

Page 6: ...iance Numerical display Displays a temperature setting or boiler status code Text display Displays ECO or Alert code Hot water Displays during a hot water demand and when the heat store is reheating Central heating Displays during central heating demand Alert Displays during a fault condition with diagnostic and status code Service mode Displays when in the service menus Centigrade indication Disp...

Page 7: ...ontrol knob to the desired flow temperature between 50 and 82 C this will be indicated on the digital display This is not the room temperature but the flow temperature through the radiators 2 The radiator symbol will be displayed to confirm that the a central heating setting is being changed 3 The value is displayed during this process press to exit or after five seconds of inactivity the boiler d...

Page 8: ...pened as the heat store will meet the demand but at high flow rates filling a bath for example the burner will fire up to boost the heat store and meet the demand If DHW is OFF on the programmer the appliance will still supply DHW using heat stored in the tank but it will not reheat the tank therefore the amount of water available is limited but is adequate for washing up filling basins etc We rec...

Page 9: ...Press and hold for at least four seconds to enter the energy saving Eco mode when Eco mode is active Eco will be displayed EXIT ECO MODE 4To exit ECO mode press and hold for at least four seconds Eco will disappear FROST PROTECTION 4 The boiler has built in frost protection to protect the boiler the boiler must have power for this to operate 4 If you are leaving the property unoccupied during cold...

Page 10: ...and the spanner symbol are briefly displayed 4If the reset was successful the boiler will return to normal operation 4If the reset was not successful then the alert code will be displayed again and the blue operation fault light will continue to flash Should the boiler enter into a Blocking condition the boiler will stop operating and no fault code will be displayed In most cases the condition wil...

Page 11: ...OP If the sealed system pressure within your system drops to below 0 5 bar shown on the pressure gauge you will need to increase the pressure to ensure your boiler continues to run without problems Your installer should have informed you where to find the filling system and instructed you in its use Once the external filling loop has been located follow the instructions for re pressurising the sys...

Page 12: ...ontrol for CH 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 temperature set too low Hot water not in timed period on the programmer Increase thermo...

Page 13: ...rcester Bosch Group Service Contract When your boiler requires servicing please contact a Worcester Bosch Group contact centre see inside front cover for details In addition to the service contract we are pleased to offer a one off annual service or breakdown call out for your boiler Maintenance tips Regularly check the oil level in the tank Do not obstruct the flue outlet or the air inlet USE IN ...

Page 14: ...sage demand more frequent services IMPORTANT Ensure that the service engineer completes the Service Record in the checklist after each service The completed checklist will be required in the event of any warranty work and may be required by the local Building Control Inspector NOTE The checklist and service interval record can be found at the rear of the Installation Commissioning and Servicing In...

Page 15: ...r allow the flue terminal or air inlet to become obstructed by plants or any other objects This boiler is only suitable for installing externally at a suitable location onto a fixed permanent rigid surface capable of supporting the boiler weight Wood and tarmac hardstandings are not recommended The boiler must be installed on a flat level surface to ensure that condensate does not enter the primar...

Page 16: ...mpatible with the boiler and system Use of incompatible additives can cause damage and will invalidate the boiler guarantee CONDENSATE DRAIN This is a condensing boiler and the terminal will at times give out a plume of water vapour This is quite normal The boiler also produces quantities of condensate which is discharged regularly via a pipe to drain This pipe must not be blocked or altered in an...

Page 17: ... obtainable in any given room is dependent on all radiators being operated at the same time If you decide to turn off radiators in unused rooms spare bedrooms etc you may experience slightly lower room temperatures in rooms adjacent to unheated rooms Heating economically The boiler is designed to provide a high level of comfort while keeping oil consumption and the resulting environmental effect a...

Page 18: ...OR 4 Our Field Service Engineer finds no fault with the boiler see Note OR 4 Evidence cannot be provided that the first year service inspection has been carried out i e an entry in the service interval record found at the rear of the boiler installation and servicing manual OR 4 The cause of breakdown is misuse or with other parts of your plumbing heating system or with equipment not supplied by B...

Page 19: ...hird parties will not be accepted for payment by Bosch Thermotechnology Ltd 4 That the householder may be asked to prove when requested the date of installation that the boiler was correctly commissioned and where appropriate that the 12 month service inspection has been carried out to the satisfaction of Bosch Thermotechnology Ltd when requested The guarantee card must then be returned within 30 ...

Page 20: ...ch Thermotechnology Ltd 6 720 805 212a 07 2013 If the boiler fails to give complete satisfaction please check the following before calling for a service engineer General checks 1 Oil level in the tank 2 Power to the boiler 3 All control settings NOTE NO BOILER FAULT IS FOUND ON OVER 30 OF ALL SERVICE CALL OUTS Please read the fault section of the manual before con tacting our service team ...

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