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 Phil Your Own Question
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

My zoning board is clicking whenever my up and downstairs

Customer Question

Hey, my zoning board is clicking whenever my up and downstairs are rining at the same time. It is also showing what looks to be a code. C4
Xci smartzone-2
Submitted: 10 months ago.
Category: HVAC
Customer: replied 10 months ago.
Running* at the same time
Expert:  Phil replied 10 months ago.

Hello, tell me a lot about your tech skills and I can coach you to a diagnosis.

So far it sounds like the control board has failed if it has worked will in the past few years and just began this malfunction.

We can go from there, or if none of this is in your skill set range I can locate a well rated HVAC contractor controls specialist in your area for you.

Customer: replied 10 months ago.
I went to school for this along time ago i really dont remember much. Ive had 4 techs over now, kinda done wih calling people....
Expert:  Phil replied 10 months ago.

Roughly one HVAC tech in 10 is up to speed enough to cope with what you have... if you are calling companies at random the odds are against you.

Trouble shooting this yourself, even with a few hours of my help will be arduous with a thin chance of success, unless you choose to replace the entire zone panel and wiring... even that will be a tall order.

YOur best bet is to let me see if i can call around for you and locate a competent HVAC controls man in your area... for that I need to know which direction you are from the center of the nearest city.