Question about Honeywell Programmable Thermostat Heater

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Rth230b thermostat, want to change C* to F*

Change the temp reading from C* to F*

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Turn the thermostat mode to off. Push & hold both temperature up &down at the same time and screen on tstat should change and display Unit this is where you change C to F setting. I dont quite remember how to exit, if you change your setting and leave tstat alone and it should change automatically Good luck
F

Posted on Jan 24, 2009

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