Loud Buzzing When Turning Gas Switch From "pilot" To "on" - HVAC - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC


Thread Tools Display Modes
Old 10-19-2009, 01:43 PM   #1
Join Date: Oct 2009
Posts: 1
Rewards Points: 10

Loud Buzzing when turning gas switch from "pilot" to "on"

I have a carrier gas furnance for a forced air heating system. im trying to turn my heat on. The fan motor runs fine when the red gas switch is either on "Pilot" or "off" but as soon as i turn the red gas switch to the necessary "on" position it makes a very loud and troubling buzzing sound. I believe it is an electrical buzzing, and the sound is definitely coming from the gas part of the furnace and not the mor itself. I'm relatively handy, but have been out of work for a year. The last thing i need right now is to have to pay for an expensive repair bill or to have to replace my furnace. Can anyone help me diagnose and fix this problem? \


mikemeenan1 is offline   Reply With Quote
Old 10-19-2009, 05:51 PM   #2
Join Date: Dec 2008
Location: West Michigan
Posts: 440
Rewards Points: 250

Does the buzz go away when the thermostat is off?


SKIP4661 is offline   Reply With Quote
Old 10-19-2009, 06:54 PM   #3
GC/Master Plumber/Mech
Join Date: Feb 2009
Location: Hays, KS
Posts: 1,500
Rewards Points: 560

Either the transformer is getting weak ot the pull in coil in the gas valve has excessive resistance

I would start with the transformer
John Wayne once said "Life is tough and it is even tougher if you are stupid"

Tempstar and Trane Dealer
Plumber101 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Just for fun Andy in ATL Electrical 56 10-20-2009 09:33 AM
Modification to an existing pump switch DRBLKJK Electrical 10 08-23-2009 03:06 PM
4 way switch confusion Richo Electrical 10 04-09-2009 07:11 AM
Replacing a bathroom fan switch cmacjr22 Electrical 4 11-04-2008 06:14 PM
Basic Switch wiring question; Dimmer to Toggle switch (Pictures included) inspectator Electrical 8 08-07-2007 01:19 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1