Worcester MT10 Replacement Mechanical Timer for Cdi, Si, and Junior Boilers

Product Information

Here’s what you do if you want to set up an automatic programme on your mechanical, or analogue, boiler timer dial. Even if you haven’t, there’s a good chance someone else in the house might have done so — we’ve been to more than one property in the past where this was the case. Reset

On this model (Greenstar 28i Junior) there were two screws on the top and two screws on the bottom that needed to be loosened or removed with a screwdriver. Removing Worcester boiler casing

Boiler timer not working? Here’s how to fix it & why

If there’s a fault with the thermostat, it might not communicate with the boiler, or tell it to come on. However it seems many Worcester Bosch boiler require you to open the gas sealed bits to gain access to wiring, so not sure how you would change what does what without going into gas sealed bits? Turn the knob to select ON or OFF, if ON is selected the Programmer will automatically adjust the time in conjunction with daylight savings time Bear in mind, after a reset many boilers will revert to 12-midnight. So, make sure you use the manual and change the time. Otherwise, your boiler will be coming on at extremely random times! How to Set a Boiler Timer A standard boiler requires a hot water cylinder to store heated water, which differs from traditional boilers that do not require cold-water storage tanks. Old age

I don't really like Worcester or Hive, Worcester will not allow you to use third party analogue thermostats like Nest and Hive is a simple off/on switch with no link to TRV's.If the boiler timer isn’t working correctly, you could be experiencing a range of problems, such as: Bear in mind that this procedure, as well as the configuration of the timer pins, may vary depending on the boiler timer model (but not by much). How to Set a Digital Boiler Timer Different homes use more or less hot water on some days than others, and a boiler timer provides the flexibility required to meet the demands.

You can do this by locating the switch that controls the power to your boiler. Once you locate it, remove the fuse using an electric screwdriver and switch it with a new one. This process should provide power to your modern boiler. There was a power cut that caused your boiler to reset Keep in mind that the terminology may differ depending on the boiler brand and model. The setup procedure will also depend on the type of timer you have — mechanical and digital. How to Set a Mechanical (Analogue) Boiler Timer

What to Do if the Timer Still Is Not Working

Already know that your boiler timer is busted? You can can get a new, reputable one like this model from Honeywell. And if you’re thinking about upgrading your boiler, you can get competitive installation prices with 10-year warranties at Heatable— simply fill in their anonymous questionnaire and get a range of boiler models with fixed prices. Your Boiler Timer Should Work Like This Whoever you use, make sure they complete a full diagnostic first. It’s not good replacing the boiler timer, and even the thermostat, to find that neither of the installations fix the problem! Boiler Timer Not Working: Parting Words Replacing the MT10 timer (or MT10rf) on a Worcester boiler is very simple once you have removed the boiler casing.

However I would not rip either out once fitted. I have wifi TRV heads but not the best, they should link to Nest but since Worcester does not support opentherm never bothered to fit it. If you take these considerations into account when installing a thermostat, it’ll work much better. Heating & Hot Water SettingsThen refit the plastic holder above the timer and screw in the screw to secure it in place. Step 5: Refit the Boiler Casing Select the “run” option to verify your changes. Alternatively, the option can read “set”, and once you confirm the option, you have successfully set your digital timer. Ensure that the boiler is set to auto. If you’ve set the timer function to “On” or “Off”, you’ll have to switch it on and off manually. As the Hive you can over ride the on or over ride the off, however I would assume you want it to be temporary? I have two thermostats wired in parallel and one is programmable so if cold I over ride the programmable thermostat knowing at next timed change it will revert to program, I assume you want same? Based on installing a new A-rated condensing boiler in England, Scotland and Wales with a programmer, room thermostat and thermostatic radiator controls (TRVs) in a gas heated detached home from an older G-rated boiler with a programmer and room thermostat. Figures are based on fuel prices as of October2023. Savings will vary depending on the size and thermal performance of your home. Source: Energy Saving Trust.