Baxi 105e - No HW, but CH OK !!! HELP Please !!!

[paulwallis]

Hi everyone. I've got a 3 year old Baxi Combi 105e, that, for some reason last night, got low water pressure and turned itself off. I turned the left dial to reset it and the Power LED goes Green. After 10 seconds or so, the CH fires up and the LED goes green. The burner on LED turns yellow, meaning everything is OK. However, the Domestic Water LED does not come on. When I turn a tap on, the Burner LED normally turns green and the hot water comes through. But nothing !! The only way I've managed to get the DW LED to come on, is if I turn off the Central Heating system, making the boiler try to fire up the HW. The light flashes for about 5 seconds, then nothing !! Any ideas guys ??

Thanks for your help.

Paul

 

[2face]

possibly the micro switch page 36

http://www.emanuelspence.net/Downloads PDF/Baxi/Baxi-Combi-105HE Servicing & Install.pdf

 

[baxpoti]

You need one of these ....
248063 Pressure Differential Assembly.

If you have little money and lots of time you can repair it with
248066 DIAPHRAGM - PRESS/DIFF VALVE


Unless, as I suspect, you have the 105e Instant with preheat?

Then you need one of these ...
248734 Valve - Differential - DHW

Or repair kit
248838 Diaphragm - DHW/DIFF - Instant