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I WANT TO REPLACE A HONEYWELL TH621OU2001 THERMOSTAT WITH A
I WANT TO REPLACE A HONEYWELL TH621OU2001 THERMOSTAT WITH A RTH2300/RTH221 MODEL. THE BLUE WIRE WENT TO C ON THE OLD THERMOSTAT. DOES IT GO TO W2 ON THE NEW ONE? … read more
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I have an old Honeywell CT87A, hot water boiler baseboard
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I just purchased a RTH2300/RTH221. In connecting, I have a
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I HAVE A HEAT AND COOL PUMP ALL ELECTRIC AND BAUGHT A
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Since the thermostat is wired to the electrical system in
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I have a RTH2300/RTH221 Series unit. I can set the time but
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yes i have a Honeywell rth2300/rth221 programmable thermostat
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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