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If I remember rightly sometimes the flue restrictor can cause problems in this boiler. Make sure the right ones installed or remove it.

The aurostor being the solar cylinder. So fit the sensor and remove stat. Thanks as long as I know it's correct. Thanks for the offer of instructions but I have them already and there just a little confusing. Readthem front to back at least several times the other day to see if I was missing...

Sorry if it doesnt make much sense. I have a Vaillant vrt 360 controller and it has the boost function for the cylinder. But at the minute i have the cylinder stat connected into vr65. Now you get a vr10 but no idea whether to install it as it says only use with unistor in manual? The vr10...

Ok I've installed a aurostor cylinder and ecotec plus 624 the question is it's working on the cylinder stat at the minute as in the manual for the vr65 control box it says only use vr10 for unistror. Now at the minute the aurostor is not connected to any solar source as this is to be done at a...