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e 50 baxi?

hi i have a baxi duo tec 28he and i'm getting the e50 code dhw sensor tried replacing but still get the same fault code , any ideas anyone cheers
fleurg, April 2012
cheers but for some reason i had to change the ch sensor and works fine now. i dont know why the error 50 is for the dhw sensor but i was told by a plumber that both need changing .

fleurgen, April 2012
If still error, could be pcb. resistance for sensor. From manual, which you should have.
Temperature sensors faulty.
Cold resistance approximately
10k�� at 25° C (DHW and CH sensors)
20k�� at 25° C (Flue sensor)
(resistance reduces with increase in temp.)

SD, April 2012
link Click here to see other fixes for Baxi.