The quote from the HVAC service that I have been using for 7 years is
a whopping $1700 - 1900 to replace the control board on my furnace
(the ignitor is not getting any power). However, I'm seeing the
replacement kit (by Carrier) online at about $300-500 from various
sites. Based on anyone's experience, what should this *realistically*
be costing me for labor?

Thanks!