Product code: 480422
A 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. As the leading supplier of parts for all the major boiler manufacturers we’ve got a wealth of experience and knowledge in this area, and with over 450 branches we carry more heating spare parts in more places than any other merchant to help you improve your first time fix rate.