Fluke digital thermometer digits do not show up

You take your Fluke digital thermometer, press the button, the display lights up but shows no readings – the digits just do not show up.

Even so – the digits do not show up – you try to use it on another day and they actually do show up and everything works just fine – but then again, a day or two later they are gone. You press the button, the display backlight goes on, but the display remains blank.

Well, the solution is extremely easy – just replace the battery.

My guess is that the power remaining in the battery is so low, that it is enough to turn on the display backlight LED but not enough to operate the thermometer circuit.

---