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wiser will operate on either 2.4 or 5ghz wifi. system can be connected via a smart phone if in the hometo the wiser wifi. but its best if sysem is fully setup to house wifi then full remote operation is available. If you get wiser installed by an installer who is part of draytons scheme then...

you said it was connected to a boiler, now it turns out it's a heat pump. Make sure you leave it switched on for heating 24/7 at static temps for each room. When it gets slightly colder these heat pumps produce a lot less heat when you need more heat!

running it on sec35 is your problem. the pump is not designed for sec 35. and then if you add additional lubricant you will ruin a pump even quicker as a kerosene pump doesn't need it. If you have to run it on sec 35 rather than sec28 drop the pump pressure down to 10 bar. it will run a...

the reason that the flow and return temps are so large is either due the system being only on for an hour or 2 or the flow loops are over 100m and then the flow rates would need to be increased. If you can post some pics of both manifolds showing the pumps etc and blending valves along with the...

You are along the right lines but you would need more 28 and less 22 or the pressure drop would be too great. Use your training material as this is basic gas. if your not qualified then leave it to those who are

If you drop the max power then everthing else works off that reduced output. Don't be afraid to drop the power to 50% and see how it goes. The amount of properties i go to that have a boiler that is more double the size needed is far too many. This then combined with zoned systems doesn't...

The reason for the boiler sitting at 20% power or idle when not at set point is due to a couple of factors. 1 being a zoned setup with a boiler that is probably way to big for the job. ( causes flow and return temp differential to be too great and boiler reduces power or goes into waiting mode)...

come across this problem a lot with systems that were fitted without flow limiters. if the system can pump around more than the design flow rate then at low outside temps it will reguarly frost up. It's not a big job to fit a flow limiter

the hive is not designed for use with a thermal store. But you can change the settings so it will work. you need to treat the timings for the hot water to be the store reheat. Set those times to be on from 1st thing in the morning until last thing at night. Then it will all work fine. the...

on the heat only version the pump is not controlled bythe boiler. Many installers set the pump on modulation and this just causes issues. Set the pump speed to maximum ( fixed not modulating). re check system balancing of radiators ( fully close all lockshield valves and then open 1.5 turns...

i look after loads of these boilers, and for yours not to work means that you either not checking what has been suggested or you don't understand what has been asked. Any competent heating engineer would be able to solve it fairly quickly.

if the diapragm has gone in the expansion vessel then the air would get released through the auto air vent. basically if you find the charge pressure in the expansion vessel has dropped when you recheck it ( make sure you have dropped the system water pressure to zero first) then that is the...

you can fit an external expansion vessel anywhere as long as it is connected to the heating pipework. the one inside is a 2lt expansion vessel. just not sure of what size connection. if you know that then you will be able to get one that will fit, but as long as its not leaking just fit an...

stop writing and post some pictures if you want any help

With cable

if it is the expansion vessel failed you can always fit another one elsewhere. Often if you calculated the size with underfloor it needs a bigger expansion vessel

loose wire is the most common issue

don't worry about the 11 degree differential. it could take weeks to get that perfected and as you have mutiple zones it would often cause some rads to stay cold. yes on towel rads open 1 end fully and the just open the other 1.0 turn. if it gets hot fine, if not open up another 0.5 turn.

could be hot water off wire has become loose in wiring center. valve is stiff and motor can't swing it round fully to central heating to activate microswitch

as i quick rule of thumb. close the lockshield valve off on every rad and open 1.5turn on the ground floor and open 1.0 turns on the other 2 floors. this should get the system pretty close so it all works