How To Videos These video tutorials, from Worcester-Bosch, show step by step information of how to help improve pressure to your boiler, re-set your boiler and bleed your radiators. Safety First – It is important to watch the video and understand the instructions fully before doing anything to your boiler or radiators. Please take care and attention.
Please only attempt to follow the instructions if you are able. If you are unsure about anything in the videos, please do not attempt to carry out the instructions.
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ST9400C is a 2 channel programmer, designed for control of both heating and stored hot water in complete systems. The heating and hot water programmes are completely independent, to allow the system to be operated in the most energy efficient manner possible.
If your boiler model doesnt appear here please Product Information: Worcester DT20 TWIN CHANNEL PROGRAMMER GREENSTAR I & SI The Heatxchange are suppliers of GENUINE Worcester parts and spares. We aim to be the cheapest and easiest Worcester spares supplier for Worcester DT20 TWIN CHANNEL PROGRAMMER GREENSTAR I & SI Please check the related appliances for this DT20 TWIN CHANNEL PROGRAMMER GREENSTAR I & SI. If yours doesnt appear in the list or you are unsure we are happy to help call us on: 24 If you need any more information on this Worcester DT20 TWIN CHANNEL PROGRAMMER GREENSTAR I & SI please and we will be happy to help.
Warranty: All our spares have a full 12 month warranty. Purchasing a Worcester DT20 TWIN CHANNEL PROGRAMMER GREENSTAR I & SI part number couldn't be easier with Next day delivery option on all spares.
Delivery options: 4 to 5 day post (free if order is over £100) - £3.75 2 to 3 day post - £4.50 Next day (Mon-Friday) - £8.00 Next day before 12 (Mon-Friday) - £15.00 Saturday AM - £25.00 Please note there is a 4pm cut off for next day deliveries.