Why does the boiler switches itself on burning gas and electricity?

  • Heater is off and will kick-in iff the temp falls below 13C
  • Hot water comes up for just 30 mins in the morning in summer

Yet, this damn boiler’s temp went up from 30C (at this time of the year) to 65C as I write! Some of the radiators are hotter, while it shouldn’t come up, given the settings! This happens several times a day! I have switched off the damn thing now! 😀

Another issue, which we don’t understand is whatever we do, the power consumption is 330-360 kWh (at least) a month. Every unused outlet is off. We switch off all non-critical standbys - except Hob, Fridge, Router, etc. I need to get a power usuage monitor!

        Gagaryn Thank you! Does it require signing up to access an app and provide the user details please? :-)

        Do I also require a smart hub for it to work?

        Thx

            LMSC Why does the boiler switches itself on burning gas and electricity?

            Without knowing how your CH/HW system is configured, difficult to do anything more than guess, but this suggests that a (three-way?) valve (or more than one) may be faulty or leaky… of course now you’ll tell me that there are no valves in your setup. 😁

                CoyoteOldMan of course now you’ll tell me that there are no valves in your setup.

                How did you get to this ? 🤣

                Giphy -

                Jokes apart, I have no clue, tbh! 😃

                I will call a gas engineer tomorrow for a service, which is due ahead of winter anyway.

                Jeez, things are breaking one by one! Can’t afford a replacement under current circumstances! 😊

                • 1 year ago, I had to replace the 6 years old dish washer with a an expensive Miele!
                • My JL American Fridge Freezer, which is 7.5 years old, is playing hide and seek by freezing foods and liquids in the fridge even at 5C - 6C. I managed to clean the dirt by opening the back of the machine a few days ago. It seems fine for now! Touch wood…
                • Now, the boiler! 😳

                    LMSC or the room stat is faulty and firing up the boiler. Your engineer will sort it out. If it’s a simple room stat won’t be very expensive.

                    I keep meaning to change my Drayton controller for a smarter version and pop in a new stat. Just haven’t got round to it. Will do it next spring now…just in case 😁

                    Contact me

                        DavecUK It’s been on an extended life since 2014. We were told the boiler was almost new after a lightning strike in 2014 took out a few. Since then, we replaced the expansion valve in 2019, Hive Smart Stat (new version) in 2018 after a neural fault on our development and Drayton Zone Valve actuator last year. Let’s see what the issue is this year! 😃

                          DavecUK smarter version a

                          What do you have in your mind? I want the next upgrade on the pencilled home automation system and/or Apple Home Kit!

                              LMSC I just want a controller for the boiler that I can connect my phone to as well as a simple room stat that I can also connect to. Not a behive or a wasps nest or anything like that.

                              Contact me

                                LMSC No. It’s dumb - no web access and no app. Just plug it in and view data on the screen. That’s why they are a tenner!

                                • LMSC replied to this.

                                    Gagaryn That’s suits me well! 😃 Thanks

                                    Edit:

                                    Ordered!

                                      LMSC
                                      I had to replace a Y plan zone valve on my hot water this week as it was constantly demanding hot water from the boiler, but the boiler wasn’t asking for hot water.. Essentially the relay in the valve had died so the switch out (orange cable) had failed closed so was outputting 230v to the water request part of the circuit.

                                      This made the boiler run 24/7 but with no water flow going out it was not using much gas.

                                      • LMSC replied to this.

                                          Del_UK Thank you! Very helpful mate! We will be calling only a Gas Engineer today. We will leave it for the person to sort out. Thx

                                            CoyoteOldMan I am with Coyote on this, presuming there is a 2 / 3 way motorised valve. They can be prone to sticking/ seizing in one position ,it could be as simple as changing the head or possibly the valve.

                                              Called out an engineer, who is expected to drop in, hopefully, some time next week! Jeez, All of them are booked 6-8 weeks ahead!

                                                @LMSC didnt you know the economy is goosed…..

                                                Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -

                                                • LMSC replied to this.

                                                  LMSC Imagine trying to get a heat pump one out. For a gas boiler the most you pay for spares/fix is closely related to the cost of a new boiler. I expect heat pump repair costs will have a similar relationship.

                                                  Contact me

                                                  • LMSC replied to this.