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Phiil, I have a comfort zone ii carrier thermostat and it
Hi Phiil, I have a comfort zone ii carrier thermostat and it operates a 4 zone carrier system. Was wanting WiFi without upgrading everything. Is it possible to just change out thermostat and keep zone… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
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I have a Mastertrol mm-2 zone control board. I just bought a
I have a Mastertrol mm-2 zone control board. I just bought a Sensi WiFi thermostat. Attached are connecting suggested by instructions. The new thermostat has combined o/b terminal. Will this work with… read more
Daniel Plourde
Daniel Plourde
plumbing, hvac technichian
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I currently have a Harmony II zone system with three
I currently have a Harmony II zone system with three Honeywell P8900 thermostats. One has quit working. What do I need to replace it with? Or do I need to replace all three? … read more
Regan Land
Regan Land
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I am having a problem with my geothermal system, it is a
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Phil
Phil
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My questions deals with on/off of a zone valve with a
My questions deals with on/off of a zone valve with a thermostat. When the motor of the zone valve connects to the 24 volt ac it opens and closes. When I place a thermostat CT87K it never opens when t… read more
D.E. Anderson
D.E. Anderson
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We have a 25 year old Salt Box Cape in Vermont. We have 4
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Rick
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Morning! replaced 16 year old programmable thermostat this
morning! replaced 16 year old programmable thermostat this weekend We have 2 zone gas/forced air heat and central air with an air exchanger and humidifier. This one is working fine, but now the second… read more
BillyHvac
BillyHvac
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hi Douglas I am looking to replace my programable thermostate (Honeywell CT8602 with a ne
hi Douglas I am looking to replace my programable thermostate (Honeywell CT8602 with a newer wifi type. The one I am replacing is a master zone compatible as I have a slave thermostat in another room … read more
Douglas
Douglas
Vocational, Technical or Trade Scho
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I have 4 heating systems/zones in my house. 2 are not working
I have 4 heating systems/zones in my house. 2 are not working as of yesterday. Yesterday we had an electrician doing some unrelated work in the house. The 2 non-working zones are controlled by thermos… read more
Rick
Rick
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Hello, I have a funny situation. My oil burner has a trianco
Hello, I have a funny situation. My oil burner has a trianco tankless water heater model (DBA4 4 gallon) that is plumbed to preheat water for the gas fired hot water heater. My friend intended to save… read more
Rick
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I have a Maple Chase 9610 stat sending a callfor heat to my
I have a Maple Chase 9610 stat sending a callfor heat to my Trianco Heatmaker Mark2 for my BB heating. I can hear the relay switch clicking in the stat, but the signal is not reaching the furnace. The… read more
Rick
Rick
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I have a trianco gas heat maker running on propane. It was
I have a trianco gas heat maker running on propane. It was in excellent working condition until last heating season. We have had a service person from our gas supplier several times last year and now … read more
Phil
Phil
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My neighbor has a hydronic heating system (Weil-McLain Boiler)
My neighbor has a hydronic heating system (Weil-McLain Boiler) and is having problems with the 3 zone valves (they are old and do not always work). He is planing to have his brother-in-law (master plu… read more
Rick
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I have a master thermostat with two slaves thermostats operating
I have a master thermostat with two slaves thermostat's operating dampers on the same zone. The system has a heat pump with a furnace that acts as the aux. Can I use the RTH7600 to replace all three t… read more
Douglas
Douglas
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I have a Rheem unit and thermostat. It has been working fine,
I have a Rheem unit and thermostat. It has been working fine, during this hot weather, until yesterday. We had one mishap with it earlier this year, that I will mention, since it might have affected t… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
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I have a carrier split zone system for ac/gas heat. I want
I have a carrier split zone system for ac/gas heat. I want to install a programmable thermostat unit to allow us to control temperature based on time of day and day of week. Most controllers I see at … read more
Bart Jay
Bart Jay
Vocational, Technical or Trade Scho
I recently replaced my old style (round) Honeywell thermostat
I recently replaced my old style (round) Honeywell thermostat with a HW Programmable Model - RTH230B. The old thermostat was used as the master (control) unit for a 3 zone heating system. It had two s… read more
BillyHvac
BillyHvac
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State Licensed Mechanical Contractor
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We live in a split-level house. The master bedroom is over
We live in a split-level house. The master bedroom is over the family room, which is on a slab. The kids bedrooms are over the garage. They are always cold in the winter and hot in the summer. We have… read more
Bob B.
Bob B.
Master's Degree
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Phil

Phil

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Rick Ridley

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Tom

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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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