Stoves Q720EM digital clock/timer display is not very bright

[John_Ha]

My Stoves Q720EM built in oven has a clock/timer with a 4 digit, 7 segment display. It is probably an LED display – the digits are orange.
EDIT. I have taken the timer out and I think it is a vacuum flourescent display as there are very thin wires running horizontally across the front and the segments are covered in hexagonal lines. There is a 3mm dia discolouration on the inside of the glass front suggesting it is failing. I guess it is a bespoke Stoves design because, for example, it has the bell symbol for the timer. END EDIT

Everything works perfectly except either the illuminated segments seem to be fainter than usual, and / or the non-illuminated segments appear brighter than usual. Either way, it is quite difficult to read the display in the daytime, but no problem at night with the kitchen lights on. POwering off-on to reset it makes no difference.

Can anyone suggest what the problem is likely to be, and any solutions. I wonder if it is a failing capacitor on the timer PCB or something similar. Any help will be gratefully received.

The timer has 5 buttons which are:

1 Timer > Press to set timer
2 Cook Time > also used to set the clock by pressing both 2 and 3
3 Ready time > as above
4 Plus > used to increase the clock or timer
5 Minus > used to decrease the clock or timer

[clivejameson]

Re: Stoves Q720EM digital clock/timer display is not very br

The only cure is a new clock i’m afraid…

[John_Ha]

Re: Stoves Q720EM digital clock/timer display is not very br

Clive

Thank you – I was expecting that :-(. I think the display unit itself must be starting to fail.

I cannot find a Stoves spare. I opened the oven and found the timer PCB has a label EL720/005.21A.

Further research suuggests that it is a generic EL720/5 clock timer made by Indesit and used by Ariston as well.

I might try replacing the electrolytics – I came across this elsewhere:

Why is the vacuum fluorescent display dim/dead?

Usually because one or more of the 10uF electrolytics on the display panel has died. Replace them all and check for poor solder joints as well. Note that all vacuum fluorescent display tubes have a “burn” mark. During manufacture, a tiny piece of magnesium is ignited inside the tube in order to use up any remaining oxygen after the air has been sucked out.

[kwatt]

Re: Stoves Q720EM digital clock/timer display is not very br

Are there any other numbers on the rating plate as I can’t track that model?

K.

[John_Ha]

Re: Stoves Q720EM digital clock/timer display is not very br

kwatt

Thank you.

The label inside the lower oven says Model 058505050 Serial No 00935264. On the knobs panel it says SERIES Q 720 EM DO HERITAGE DOUBLE OVEN. It is about 10 years old – a built in double oven with fan assist.

[kwatt]

Re: Stoves Q720EM digital clock/timer display is not very br

I think the reason you can’t find it is that it appears to be obsolete. 🙁

K.

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