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 HVAC Guru Your Own Question
HVAC Guru
HVAC Guru, HVAC TECH
Category: HVAC
Satisfied Customers: 14238
Experience:  15yrs in the HVAC industry with certificates and degrees.
21107370
Type Your HVAC Question Here...
HVAC Guru is online now
A new question is answered every 9 seconds

Have an 10 year old ultra 80 boiler that won't start.

Customer Question

have an 10 year old ultra 80 boiler that won't start. Replaced the ignitor, removed the particles from the heat exchanger, made sure t he condensate was not backing up into the heat exchanger.
What's next?
Submitted: 1 year ago.
Category: HVAC
Expert:  HVAC Guru replied 1 year ago.

Hello and thank you for using this service, please be patient as it takes time for me to type, add links and research your issue. I will get back to you as soon as I can thanks!

Does the ignitor glow?

Customer: replied 1 year ago.
Not an HVAC tech. Do I just look in the little window to check or do i need to remove it from the exchanger to check?
Expert:  HVAC Guru replied 1 year ago.

Yes just look in the window and see if it glows.

Customer: replied 1 year ago.
Give me a couple minutes. I'll check now.
Expert:  HVAC Guru replied 1 year ago.

ok

Customer: replied 1 year ago.
No glow in the window.
Expert:  HVAC Guru replied 1 year ago.

OK is the fan on and is the unit running?

Customer: replied 1 year ago.
Customer: replied 1 year ago.
It cycles between code one and two and then starts blinking with the code that says it failed to start after 5 tries.
Expert:  HVAC Guru replied 1 year ago.

What exact code is listed on the panel that matches the one shown?

Customer: replied 1 year ago.
Code 2
Expert:  HVAC Guru replied 1 year ago.

OK one sec...

Expert:  HVAC Guru replied 1 year ago.

OK do you have a volt meter?

Customer: replied 1 year ago.
You think it may be the cable that connects to the ignitor?
Customer: replied 1 year ago.
No volt meter but if the part is suspect, I'll just replace it.
Expert:  HVAC Guru replied 1 year ago.

Yes I do either the spark ignitor is not getting voltage and if it is not the board is defective on the unit. So either you have a bad cable, bad new ignitor or the board is bad...one of those is the issue. You have a spark ignition system on that unit...

Check ignition electrode cable, electrode connector, spade connection at MCBA and other connections.

Inspect ignition electrode cable and electrode for insulation damage.

We are on the honor system for our time, all I ask is please use the star rating link on your page to rate my service. This will allow you to get directly back to me for FREE followup questions anytime and tips are greatly appreciated thank you!

Customer: replied 1 year ago.
Looking to find a voltmeter. Haven't used it in years so hopefully I can find it. Meantime, I have another ignitor on hand so I may just try installing that. Will only take 5 minutes.
Expert:  HVAC Guru replied 1 year ago.

ok

Customer: replied 1 year ago.
No luck. Looking on SupplyHouse.com and cannot find the cable. Is it integrated with the circuit board?
Expert:  HVAC Guru replied 1 year ago.

a

Expert:  HVAC Guru replied 1 year ago.

Yes the cable is part of the ignition board...If you are not getting a spark the board is likely bad..very common.

We are on the honor system for our time, all I ask is please use the star rating link on your page to rate my service. This will allow you to get directly back to me for FREE followup questions anytime and tips are greatly appreciated thank you!

Customer: replied 1 year ago.
I'll pick up a volt meter tomorrow. What should I be looking for?
Expert:  HVAC Guru replied 1 year ago.

Do you hear any clicking like sparking when the unit tried to start?

Customer: replied 1 year ago.
Nio. I'm thinking I have a bad controller. Looks like the original art is no longer available. Found a company that repairs the circuit boards.What would you do? Get a different board or have the original repaired.
Expert:  HVAC Guru replied 1 year ago.

I would get a different board I would not advise repairing the old one.

Related HVAC Questions