Heat Relay/sequencer - HVAC - DIY Chatroom Home Improvement Forum
Advertisement


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

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread
Display Modes
Old 03-11-2020, 08:24 PM   #1
Newbie
 
Join Date: Mar 2020
Posts: 1
Rewards Points: 2
Default

Heat relay/sequencer


Hi all. My first post and I did do a search. I have an older Lennox electric furnace, late 70s, only the lower two elements come on. After testing I found that power, for the upper two, stops at the sequencers. Now the problem, Lennox no longer supply's them and they are no longer in production. I know that there is a substitute but I have no idea what I'm looking for Lennox calls them Heater relays and others call them sequencers I don't know if they are the same thing. I have seen what are called stacked sequencers they look completely different from mine but might work. I guess I am looking for someone that can walk me through finding a replacement.



Thank you
Floyd
flw1960@msn.com is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 03-11-2020, 09:10 PM   #2
Member
 
surferdude2's Avatar
 
Join Date: Nov 2019
Location: Southern Illinois, USA
Posts: 2,950
Rewards Points: 906
Default

Re: Heat relay/sequencer


Can you give a part number or post a picture to drop box or equal of it and link it here. Sequencers are pretty common devices and you can use anything that fits if it has the same number of stages and the control voltage is the same. Any data written on it will be helpful.
surferdude2 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 03-11-2020, 09:13 PM   #3
Member
 
surferdude2's Avatar
 
Join Date: Nov 2019
Location: Southern Illinois, USA
Posts: 2,950
Rewards Points: 906
Default

Re: Heat relay/sequencer


I suggested Drop Box or equal since you aren't allowed to post pictures directly in a thread until you have the required minimum of posts according to forum rules. You'll probably get that minimum in this thread alone... but for the moment, Drop Box it.
surferdude2 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 03-12-2020, 07:01 AM   #4
Hvac Pro
 
yuri's Avatar
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 22,448
Rewards Points: 202
Default

Re: Heat relay/sequencer


If you have that old school Honeywell sequencers and fan relay combo control it is obsolete.

Only solution is to rip them out and rewire the furnace with conventional sequencers and that is quite complicated even for a tech.

We usually replace those furnaces with newer ones.
__________________
"Cut it twice and it is still too short".
yuri is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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





Top of Page | View New Posts