My furnace will not light, but if I light it manually when it turns on, it will run normally. I have already changed the igniter and that did not...

How It Works

Get an answer in three easy steps. Here's how it works...

Ask Your Question

1. Ask Your Question

Enter your HVAC question at the top of this page and click Get An Answer.

Pick Your Priority

2. Pick Your Priority

Tell us how quickly you want your HVAC question answered.

Get An Answer

3. Get An Answer

Connect with your HVAC tech via online chat or telephone call.

Get An Answer 

Answer

Customer

My furnace will not light, but if I light it manually when it turns on, it will run normally. I have already changed the igniter and that did not fix it. When it kicks on the igniter doesn't spark. My house has 2 furnaces and the igniter will work in the other furnace. Any idea what the issue is?

Last updated
Adell Mcneal
HVAC Tech

Either the circuit board or pressure switch is bad

Posted
Customer

Is there a way I can confirm it is one or the other?  

Posted
John Trempe
HVAC Tech

I believe the board is not responding

Posted
Joe Weston
HVAC Tech

It is best to get a servuce man in perhaps the company that services your furnaces and put what  we call a multi meter to check the resistances  and voltage currant.Or perhaps tty hinking of changing your furnaces yo high egg whites here they have automatic ignition where you don't have to light the pilot light anymore plus you will save on your fuel bill,over a mid eff

Posted
Customer

I swapped the pressure switch and that did not make a difference.  I also wanted to add that there is no pilot light on this furnace, it is an electric spark igniter.  Also, once the burners are lit, the furnace will function normally until the next time it needs to start.  If it cycles on and the burners are not manually lit, it will continue to run until the thermostat is set to a temperture below the current temperature.   Should the flame sensor shut the furnace off after a certain period when it doesn't detect a flame?  If it is the circuit board, is that something a DIY'er can purchase and change or are special tools/instuments needed?

Posted
Joe Weston
HVAC Tech

Sorry my first response had errors in it.But what I meant was maybe looking at a high eff furnace , no pilot light automatic ignition less hassle plus save on your fuel bill, mid which you have is not manufactured anymore

Posted
Customer

I appreciate the suggestion but I don't have the budget to purchase a new furnace.   Ballpark, how many years does it take to recoup the savings on a high eff?

Posted
Get An Answer 

quoteTestimonialsquote

About ExpertHelp

ExpertHelp is changing the way you connect with service professionals.

Whether you have a quick question while preparing your taxes, troubleshooting a computer problem, or need to hire an attorney, ExpertHelp is the most convenient and affordable way to connect with the right service professional to get the job done.

ExpertHelp has been in business since 2011, is an A+ Rated Better Business Bureau accredited member, and offers a 100% satisfaction guarantee on every question you ask!

Get An Answer 

Ask Your HVAC Question & Get An Answer Now!