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Our Siemens rev 11 screen has gone blank We have put in new batteries but still nothing does this mean the thermostat controller is dead or is there an electrical problem

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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confusedbrit
  • 38 Answers

SOURCE: The screen became blank

I would say the LCD is dead. They seem prone to that because we have had to replace two handsets with exactly the same problem. The one lost the top row of the screen, the second is completely screendead. Though all is not lost. Any GAP compatible cordless handset will work with that base, so you can replace them and not have to buy an entire system :) Ebay is a good source for handsets only.

Posted on Aug 20, 2008

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Nobarai
  • 57 Answers

SOURCE: TI-83 Plus Went Dead

Has it been dropped recently? The screen may have cracked from impact. Press the Reset button on the back using a ball point pen.

Posted on Nov 16, 2008

nematics
  • 431 Answers

SOURCE: sony ericsson z310i, display screen has gone blank

try flashing the phones software

Posted on Jan 11, 2009

Fame_Guru
  • 483 Answers

SOURCE: I have Nokia 1100, battery is dead & won't charge

Hi,

I am sure if you take this to the nokia care they have an easy replacement for the battery.

Thanks

Fame !

Posted on Apr 27, 2009

james3751
  • 614 Answers

SOURCE: blank thermostat

Check voltage at unit. Also check the 5 amp fuse in the unit. If this unit has a float switch in the drain line check that. Rus

Posted on Dec 03, 2009

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The display should not be blank, meaning nothing there to look at. Different digital thermostats can be powered in 3 ways. Just from their battery's, from the furnace control transformer, from the furnace control transformer with battery back up in case the control power fails to retain your programming. Usually, removing it from the base and pulling the battery's to kill ALL of its power, waiting a minute or so then re-powering it, will restore the factory program and return the display. Also, there may be a small fuse on the back of the stat. If it has one, it will be easy to see if you are looking for it. Easy to miss if just looking at it for no reason. Be sure there is power to it. The battery's and their connections first. If you have a meter, check for control voltage. Put one lead on "R" then touch the other to "C", "Y" or "H". Should have 24 volts (AC) from the furnace transformer. I have never seen a stat blow from a power outage. But?

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The screen became blank


I would say the LCD is dead. They seem prone to that because we have had to replace two handsets with exactly the same problem. The one lost the top row of the screen, the second is completely screendead. Though all is not lost. Any GAP compatible cordless handset will work with that base, so you can replace them and not have to buy an entire system :) Ebay is a good source for handsets only.

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