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Question for Flow-Heater-393-877953-001E (Added 24/11/16 )

I suspect the heater in my integrated dishwasher (B&Q model DW009) is faulty and needs replaced. My heater looks exactly like the one in your photo (flow heater 393-877953-001E), however the number on the side of mine is 393-877953-001 (no E). What does the ‘E’ stand for? Also is there any way to check it with a digital multimeter to see if it is faulty? If so, how do you do it? Ohms resistance test on the lower two electrical points? What readings should i expect if its faulty/operating? (Sorry I’m pretty new at this multimeter business). Cheers, Gavin

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