Question about Shaw Robert RS-9420 Thermostat
Perhaps it's running on the battery back-up and is telling you that the AC isn't on to the unit.
See if the wires broke off the screw terminals. It'll have to be the + OR the - in the board.
It's not THAT unusual since the wires are thin and get nicked when trimmed for installation.
Posted on Feb 08, 2011
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Posted on Jan 02, 2017
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