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No display on Robertshaw 9600; unit seems dead/furnace works

We have two zones and this thermostat is in the zone which is hardly ever used. I know because of the other zone that the heater works fine. I noticed the Lo Battery reading and changed the batteries on the ''dead'' 9600. After this there was no display at all. I don't know how to test these things More We have two zones and this thermostat is in the zone which is hardly ever used. I know because of the other zone that the heater works fine. I noticed the Lo Battery reading and changed the batteries on the ''dead'' 9600. After this there was no display at all.

I"m unsure how to test these things and was thinking about just buying a new 9600 and replace the old one following the existing wiring. Does anyone know how to troubleshoot an issue like this where the furnace works but the thermostat appears dead? Thanks!

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  • richielj Jul 26, 2009

    Thanks, manhandy, this solution makes to most since AND a new one is only $45.

    thanks!

  • richielj Aug 23, 2009

    Everything works now that I replaced the thermostat. I needed a little shove in this direction. Thanks!

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Hello
you have to have a thermostat! The thermostat tell the unite what to do. Get a new one.

Posted on Jul 26, 2009

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