Our Robert Shaw thermostat 9520 just went blank. Do you have any ideas, nothing is working?

Found one here:
http://www.digitalthermostats.com/vault/Pdf/9420manual.pdf

My be OK for now but you need to repair or replace the thermostat

Hi,
You are not getting the 24v power from the furnace...
Either the furnace power is off... the 24v transformer went bad...
or there is a fuse that blew which is interupting the 24v power from the trnasformer...

The blank screen in other words is an indication of amuch larger problem...
you need to find that power problem and fix it...

ere is a tip that will help you try to figure out why your furnace is not working.

Basic Furnace or Heating System Troubleshooting

heatman101

Here is a link to the complete user's manual for Shaw Robert RS-9420 Thermostat:
http://www.honeywell-thermostat.com/manuals/rs9420manual.pdf

Good luck and thank you for using FixYa! We would sure appreciate a 4 "thumbs-up" rating for this FREE answer. Happy holidays!

There doesn't seem to be a battery in that model. Supposed to be permanent memory. You can download a PDF manual at this site if you need it.

http://www.honeywell-thermostat.com/honeywell/RS-9420.html

YES YOU CAN GO ON LINE A GET THIS

i am having a ER on my shaw robert theromostat model RS-9420

Best solution GET RID IT BEFORE IT'S TOO LATE....Original 9420 installed 8-18-06 changed temperature by itself and would not allow any adjustments...this one replaced on 1-3-08 and this one is doing same thing. Heat set on 70 when I noticed it getting extremely hot I checked thermostat and it was on 99 and would not allow me to adjust. Switched to off position waited 25 minutes and cut back on to heat....still will not allow me to adjust down from 99.....THIS PIECE OF **** WILL BE REPLACED TOMORROW WITH ANOTHER TYPE OF THERMOSTAT.