genuine Worcester Bosch part, this thermistor is designed for use in Greenstar, Greenstar ErP, CBi Series, CDi Series, Highflow, i Junior Series, SBi Series, Si/C1 Series and RD Series boilers. The thermistor decreases circuit resistance in line with temperature increases. A boiler’s prInted control board (PCB) sends a current to the thermistor, deciding whether a decrease or increase in heat is required by reading the relative resistance.
Delivery is free on all orders. We deliver all around the UK using DHL and Parcelforce. Standard delivery will take 1-5 working days to reach you. However, once the order is received, we will contact you to give you a more precise timescale. Usually, we will deliver the next day, subject to the date and time of when the order is received and the product.
Orders placed during the weekend will be processed the following Monday for delivery the following day. In the case of Bank Holidays, your order will be processed the next working day and delivered the following working day.
Remote areas: For orders to some addresses, especially in the Highlands of Scotland and Offshore, next day delivery options are not available, and delivery can take several days. Saturday delivery is unavailable for these areas.
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