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My thermostat is blank and I can't get it to do anything.

Customer Question
hi, my thermostat is blank...
hi, my thermostat is blank and I can't get it to do anything. what do I do
JA: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?
Customer: I think just the thermostat
JA: Do you plan on doing the work yourself?
Customer: if I can
JA: Anything else we should know to help you best?
Customer: no
Submitted: 1 year ago.Category: HVAC
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Answered in 5 minutes by:
10/30/2016
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,888
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified

Hello,

My name is ***** ***** I will do my best to assist you. I am looking over your question now and will respond shortly.

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HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

Before we get too far do you mind a test at the thermostat?

It involves removing the top section and locating 2 wires...

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Customer reply replied 1 year ago
ok
Customer reply replied 1 year ago
which wires do I look for and then what is the next step
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

we want to find the green wire and the red wire...Terminals R (may say R,Rh,Rc) and G

Use a paperclip or short wire shaped in a U...hold one wire on R and other on G

Tell me if the blower starts

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Customer reply replied 1 year ago
I see red, green and white wires but I don't understand the next step
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

ok,

do you have a gas furnace and ac, furnace only, boiler, or heat pump and I will clarify

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Customer reply replied 1 year ago
Not sure, new house built in 2013. Unit sits outside the house
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

ok, do you have registers that blow air out or radiators on the walls

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HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

and is there an air filter you change?

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Customer reply replied 1 year ago
Air blows out registers and I change filters in the attic
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

ok,

so lets change how we do it.....remove the red wire and green wire,,,and twist together..

tell me if blower starts

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Customer reply replied 1 year ago
Nothing happened
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

ok this means it is not the thermostat.

This means it will involve getting to the unit for further testing.

How do you feel about this?

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Customer reply replied 1 year ago
Any chance I could fix the problem or should I call for service?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

Its hard to tell. This means the furnace is not sending thermostat power to the thermostat.

Could be:

No power to furnace

bad transformer

blown fuse on circuit board

safety tripped

I am really sorry but it is hard to answer without phyically going to the unit and testing for power.

If you do not have a volt meter and comfort level to test electricity I would call for service.

Billy

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Customer reply replied 1 year ago
Ok, thank you. I checked the electrical box in the garage and nothing tripped there so I will call for service. Thanks for your help.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago

You are very welcome and I really wish you the best.

If you have any other questions let me know as you have 30 day follow up after you rate service today.

Billy

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BillyHvac
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,888
22,888 Satisfied Customers
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics

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