Good day I have a Reli-On thermostat Model No: 144-691-000 After I changed the battery to the thermostat I don't get it to take temperatures. When I turn it on I get the screen with "188.8F" screen and the just the letter "E" appears on screen. Nothing else then happens. What can or should I do?

Asked by Stef on 04/17/2020 0  Answer

ManualsOnline posted an answer 6 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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