How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask airheatman Your Own Question
airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 8326
Experience:  Furnace, A/C and heat pump specialist.
16514686
Type Your HVAC Question Here...
airheatman is online now
A new question is answered every 9 seconds

Ok I just purchased new thermostat. it does not have a place

Customer Question

ok I just purchased new thermostat. it does not have a place to hook up my common wire. do I need to return thermostat
JA: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?
Customer: thermostat
JA: Do you plan on doing the work yourself?
Customer: yes
JA: Anything else we should know to help you best?
Customer: trying to install new thermosta
Submitted: 8 months ago.
Category: HVAC
Expert:  BillyHvac replied 8 months ago.

Hello,

Does the new thermostat need a common?

Or does NOT have a common (C) terminal

Customer: replied 8 months ago.
Don't have a common
Customer: replied 8 months ago.
New thermostat does not have a common
Expert:  BillyHvac replied 8 months ago.

ok common is not needed then on that thermostat...when C is not present...just tape the C wire off and tuck away.

Billy

Customer: replied 8 months ago.
Ok I did that but thermostat did not come on
Customer: replied 8 months ago.
But when I hooked old back up it came on
Expert:  BillyHvac replied 8 months ago.

did you use batteries in the new thermostat?...what is the model?

Customer: replied 8 months ago.
I did use batteries it's a Honeywell RTHL3550
Expert:  BillyHvac replied 8 months ago.

did you happen to have power off to thermostat when changing wires?

Customer: replied 8 months ago.
I had power off. Cut the breakers off..
Expert:  BillyHvac replied 8 months ago.

gas furnace and ac or heat pump?

Customer: replied 8 months ago.
Heat pump
Expert:  BillyHvac replied 8 months ago.

Thank you, ***** ***** program for heat pump since the unit comes default for gas furnace and ac ?

In the menu program setup?

Customer: replied 8 months ago.
This is a non programmable thermostat
Expert:  BillyHvac replied 8 months ago.

not that program...the one where we tell the thermostat what it is controlling.

Customer: replied 8 months ago.
No
Expert:  BillyHvac replied 8 months ago.

starts page 12 here

Customer: replied 8 months ago.
Ok
Expert:  airheatman replied 8 months ago.

Billy had to leave so I will help from here.

Start by telling me what wires you had to what terminals on old and where you have them on new.

Then after wiring thermostat, you will need to go to the installer setup menu and select the following for each function to match the thermostat to your system.

1=5

2=0

3=1

5=9

6=9

Any other functions are at your discretion.

If any functions listed do not show available, this means thermostat has setup based on a previous selection.

Expert:  airheatman replied 8 months ago.

To enter setup menu , press UP and fan buttons for 5 seconds.

Press UP or Down to change settings

Press Next to advance to next function

Press done when finished

Customer: replied 8 months ago.
On the old thermostat it had red-R,
Yellow-y, orange-O/B, white-w2, Green G , common-c, the new thermostat just had everything else but the common hook up
Customer: replied 8 months ago.
Oh ok even though this is not a programmable thermostat I'm going to need to set it up like this.
Customer: replied 8 months ago.
Ok that's the set up number u need me to put in after installing
Customer: replied 8 months ago.
I'm installing thermostat again I will send u a message after I get to the program mode
Expert:  airheatman replied 8 months ago.

Standng by.I sent instructions on how to get to setup menu.Let me know any questions you have

Customer: replied 8 months ago.
Everything is working now.. still feels like cold air is coming out vents I don't think my heat strips are working or something.
Expert:  airheatman replied 8 months ago.

Are you in regular heat mode> And what brand is your heat pump?

Customer: replied 8 months ago.
Yeah I'm in regular heat mode.. but my Auxiliary heat is on. It's a goodman
Expert:  airheatman replied 8 months ago.

Is outdoor running and if so is air coming out top of outdoor unit CCCOOOLLD?

Customer: replied 8 months ago.
No unit not running just compressor fan not on
Expert:  airheatman replied 8 months ago.

Do you have a meter to make sure we are getting voltage to outdoor? If it has been 5 minutes(time delay) outdoor should be on

Customer: replied 8 months ago.
Fan not working on the outside you can only hear the compressor running shutting off unit now.
Customer: replied 8 months ago.
Expert:  airheatman replied 8 months ago.

OK may have a bad board or motor in outdoor unit

Customer: replied 8 months ago.
Ok how can u figure that out.
Expert:  airheatman replied 8 months ago.

Thermostat issue is solved and I have accurately helped you straighten it out. I am only paid a portion of what you paid for the answer, so not being rude, but have invested well beyond the time for value of question.

I am a Goodman dealer and will be happy to help you troubleshot the fan issue under a different question if interested after you rate this answer.

Customer: replied 8 months ago.
Ok thanks
Expert:  airheatman replied 8 months ago.

THank you