LCD display for boiler timer missing segments.

pfpf

timer works fine but as you can see…….is there a fix or do i just wait till i need a whole new unit?

pfpf

i was also going to change the backup battery but can't see any access, on checking it appears its a permanent fit so if the battery fails its a new unit. i feel the time is approaching.

RumRat

It's 15 to 25 years old and it's a common problem. The 'Zebra strip' hardens and causes the missing segments. Heat from the boiler cupboard usually accelerates the strips demise.

Might be an opportunity to fit a smart thermostat?

pfpf

https://forums.moneysavingexpert.com/discussion/comment/81936498#Comment_81936498

probably nearer the 25 years. surprised now i know its a fixed backup battery that that hasn't already failed. the timer is in the garage but has had a fridge stood by it so only saw the LCD today. it does still work for the water on/off times.

do you happen to have a link to a "smart" timer that would be a replacement? something to get me started looking at!

thanks so much.

p.s this is the timer unit, is it also called a thermostat?

sausage_time

I fitted a couple of Nest thermostats a while back (the system has two heating circuits). These act as timers for the heating too. The app is good - lets me monitor and set remotely.

RumRat

https://forums.moneysavingexpert.com/discussion/comment/81936508#Comment_81936508

Yes it does the same thing.

As said there's Google Nest or if you want the same make as that broken thermostat…..

2 Channel Smart Heating & Safety Sensor Kit | 2nd Generation | Wiser

Or Hive or Ecobee. Just google best smart thermostats and you'll get some decent information. Most people will advise buying the one they have rather than necessarily the best for you. They all vary in price, but the best sellers are generally good.

You could ask whoever services your boiler if they fit them.

chrisw

It's actually a rebadged Drayton LP722 programmer, there's the same one new on eBay for £50, or plenty of secondhand ones cheaper, and should just clip on to the existing backplate.
Or there's an updated more rounded version widely available for £60 to £70 and again, should just clip in to the existing backplate.

pfpf

final question. internally would the wiring be similar to wiring a mains plug? DIY?

wongataa

https://forums.moneysavingexpert.com/discussion/comment/81937679#Comment_81937679

Yes. You wouldn't need to do any wiring though. These units all clip onto a standard plate on the wall that the wires attach to. You would just need to turn the power off to the power circuit the box is on (or the whole house), remove the old unit, and attach the new unit. Then turn the power back on and set up the new unit.

You need to make sure whatever new unit you get has the same control types as the old one. If you have a hot water cylinder the new one need to work with hot water cylinders etc.

sausage_time

https://forums.moneysavingexpert.com/discussion/comment/81937679#Comment_81937679

Hive, Nest, Ecobee and the like will need more work - your boiler service folks can advise.