Hands down the best educational video I have ever seen on UA-cam. You, my friend, are an awesome teacher. Very well presented with fantastic visual aids. Thank you.
Excellent demonstration . I had NO clue how those things work. My furnace is acting strange, and I think one of those switches might be bad. Now I can understand when a tech tries to explain what's happening. Thanks!
I'm a certified automotive technician in electrical/electronics, so the respect for what you do is there. I think I should be able to tackle my sequencer now thanks to your video. 👍😊
I have started the section on electric furnaces in class had a little trouble understand the heat sequencer ( was the first day of class). After watching your video understand the wiring of it perfectly. Thanks for helping me get an A on this section!!!!!
I am an x-teacher, and having seen a couple of your videos I have to compliment you on your preparedness, your associated mock up components, and your clear and detailed explanations. Some of the best video explanations I have seen on youtube. May I suggest that you also have a small plaque or sign of your business website somewhere in the overall screen so as to remind viewers. For as they say, out of sight...out of mind. Best of luck, and hoping to visit your site in the future. Ron
Mark very nicely done, looks like this video resolution is as old as the video. Would be nice to see in a more high resolution video but get the idea still. Also could be very informative to see with fan relay setup works with the heater loads on the board demo and maybe a manual fan only switch on the furnace as some old units have. Maybe you are sitting back with the fishing rod now. Still an awesome video !
Your explanation is quite good. They way you did this for testing it wouldn't take much to convert a gas furnace to electric, with the right parts and some furnace modding. I've looked up the parts I'd need, it would be much cheaper to convert than to buy a completely new furnace. I'm a DIY guy, with the knowledge I do have and some logic it shouldn't be any trouble... thanks for your informative video.
Great video very educational. I recently bought a Miller e3ed 015h and was told it had sequencers. I found out after it was installed that it had contact breakers instead. Sequencers make no noticeable noise turning on or off but contact breakers on the other hand do. My new Miller furnace is located right next to my bedroom door and all i hear all night is click clack click clack that sounds like a rat trap going off every time the furnace comes on and goes off. How can i change to sequencer?
Very Cool. I enjoy your demonstration. Thanks for doing this. can you explain how it should work if you add the 3 limit switches and variable speed furnace motor? Thanks in advance
Does it matter if your sequencer has 1 and 4 on one side and 3 and 5 on the other side and the replacement has M5 and M6 and M7 and M8? If it matters then can the replacement still be used? If so how would I wire the replacement? Where would I place the connection that was previously on 1 on the old sequencer on the new sequencer with M5, M6, M7, and M8? Same with 3, 4 and 5? The reason I am trying to stick with this sequencer is because the timing of it is the closest to my old sequencer. I am not sure it matters but from what I read timing has to match but sequencers with that timing no longer exist. Seems to be completely phased off as it is not in most sellers records or inventory. Because of this I could not find an exact cross reference for it.
thanks for the help, I am installing a strip in my old school Miller Package Unit and will have to rig the system on my own. (don't worry just a 5K on a 30amp line)
My furnace will shut off with the thermostat MAYBE 20% of the time, or it will run until I have to shut off power at the breaker. I changed thermostat and it still does it. is it the sequencers?
In a situation like this. Do the thermostat have to be set to a high temperature in order for all the heating elements to come on or do it calls for all the heating elements to come on if that the demand load is not met. In other words if it’s really cold and the thermostat is set to something like 70° would that cut all the heating element or would you have to turn the thermostat up higher?
Last night my husband was reconnecting the wires to everything because we just replaced the blower wheel, when we flipped the power and turned the thermostat on, only the outside unit came on and there was a humming coming from the inside unit. We turned everything back off and left it alone for now. I saw the delay in your video after turning on the thermostat; so my question is, is that what was happening with our unit when we turned on the power?
Will a bad sequencer cause the elements to turn on without the fan running? I have woken up to a light white cloud of smoke and the smell of burning(sweet). The only thing I have noticed is that the unit itself gets really hot even when it’s not running.
thanks for the post, my electric furnace works like it should, then after a while it will not come back on. after taping on the element front plate it works again... the breaker was changed last year all wires and terminals look fine any ideas? thanks...
Loading... Loading rich text... « Plain TextCheck Spelling Resume Editing Hi, I found your explanation very good. Can you help me? I have had three (3) Techs fix my electric furnace / wood. I am interested on the electric side of the furnace. Techs have changed sequencers now I think sequencers are out of order.PS I would like to change all sequencers for a proper order of operation and spares.Sequencers are now burning, not lasting one heating season.I am now held PRISONER by my furnace .Sequence now in operation of order:1 - 12S22 H24V 305448 2 - 14S22 H24V 305815 24A34 - 21 4/5 H1 - 20 C40 - 90 H1 - 2 0 C1 - 60 1/3 H30 - 90 C1 - 30 A0940 A1044 3 - 14S22 H24V 305815 4 - 14S22 H24V 305815 4/5 H1- 20 C40 - 90 4/5 H1 - 20 C40 - 90 1/3 H30 - 90 C1 - 30 1/3 H30 - 90 C1 - 30 A1442 A1040Elements are 5KW @ 250 V There are four (4) but only three (3) are connectedTotal three (3) draw 65.5 Amps.!st stage 25amps 2nd stage 45amps 3ard 65.5 amps state set 17cel furnace starts every 40min runs for 10min.Very gratefulPhil Sans Serif
Had sequencer replaced in electric furnace and now there's a noise that sounds like a fan or blower motor -- a ticking sound. Could that have been from the sequencer install?
our triple stack sequencer went out on our electric furnace, the tech put in a double stack cause he did not have a triple. he also said the coil in the furnace was too small for the unit and he was not sure why they put in the smaller coil. the start of all this was we woke up kicked on the heat and after an hour the house was not warm and it was blowing cold air! The tech is going to check with his company and see why smaller coil was put in. so this should get interesting.............
Hi, Can I use M1 & M2 for element if M3 & M4 contacts are burnt (same sequencer?Can you talk about timing on sequencer & 4/5 & 1/3 on same sequencer?Thank You Phil
Hi, I have an old electric fan heater which I had to take a part to fit in a smaller case, I messed up the wiring!! can any one explain how to join/ connect the power, fan motor to the 2 heating wires please? thank you very much
hi, my electric furnace makes a click from time to time and I thought that"s something wrong. I have no heating problems. if I understand well it's the sequencer who's making the noise. is it normal to hear this noise ?
Hi, I would like to change sequencers in my electric/wood furnace. I have had 3 techs work on sequencers. Would like 4 new sequencers to put back in sequence and spares. Can you recommend .Now held prisoner by my furnace.Summerair 5kw 250V The sequencers in order of operation now:1 - 12S22 H24V 305448 24A34-21 H1 - 20 C1 - 60 A0949 2 - 14S22 H24V 305815 4/5 H1 - 20 C40 - 90 1/3 H30 - 90 C1 - 30 A1044 3 - 14S22 H24V 305815 4/5 H1 - 20 C40 - 90 A1442 4 - 14S22 H24V 305815 4/5 H1 - 20 C40 - 90 1/3 H30 - 90 C1 - 30 A1041 Fan / high limit/ ? limit 120v connected to #4 sequencer Very Grateful Phil
First, make sure you can hear the relay turn off at the thermostat, just a click when you expect fan to stop. Try the fan switch separately. On an older furnace especially, next thing to check is the delay then the relay behind the upper furnace cover. OK, Warning, only do this if you are comfy with deadly power. There may be a silver cigarette carton sized object with a slide controller on it. Tap that lightly with a non-conducting object. Fan may just shut off with the tap. If so, could be this delay unit, but may also be the relay near it...looks like a shiny ring box with wires attached. Tapping this might also shut off fan...but it may well be more hidden and hard to get to. Newer furnace may have relay on the IFC, the control board. In any case we're talking LIVE power circuits here, so if tapping without the power shut off use only a non-conducting object and stay clear of any contacts, or consult a pro. The delay will be very expensive (>$100); the relay will likely be pretty cheap (
Hands down the best educational video I have ever seen on UA-cam. You, my friend, are an awesome teacher. Very well presented with fantastic visual aids. Thank you.
Best example I've seen learning about these sequencers. Thank you!
You are a Teacher and a half sir! Brilliant staff.
Excellent demonstration . I had NO clue how those things work. My furnace is acting strange, and I think one of those switches might be bad. Now I can understand when a tech tries to explain what's happening. Thanks!
This is one of the best videos I have seen !
Thank you for taking time to teach us
Extremely well made instructional. Simple and easy for even a "dummy" to understand how a sequencer works. THANK YOU!
I'm a certified automotive technician in electrical/electronics, so the respect for what you do is there. I think I should be able to tackle my sequencer now thanks to your video. 👍😊
thanks. That was fun to watch....much easier to understand because of how you mocked up the bulbs and motor. Thanks!
I have started the section on electric furnaces in class had a little trouble understand the heat sequencer ( was the first day of class). After watching your video understand the wiring of it perfectly. Thanks for helping me get an A on this section!!!!!
Great way to see how a sequencer works.
Great help to me.. you couldn't have explained sequencers any better.. thanks so much for this video!
Thank you so much for the simple explanation. You gave me the confidence to work on my own furnace - safely of course.
I am an x-teacher, and having seen a couple of your videos I have to compliment you on your preparedness, your associated mock up components, and your clear and detailed explanations. Some of the best video explanations I have seen on youtube. May I suggest that you also have a small plaque or sign of your business website somewhere in the overall screen so as to remind viewers. For as they say, out of sight...out of mind. Best of luck, and hoping to visit your site in the future. Ron
Excellent video! Very easy to follow the sequence and particular pieces functioning!
Mark very nicely done, looks like this video resolution is as old as the video. Would be nice to see in a more high resolution video but get the idea still. Also could be very informative to see with fan relay setup works with the heater loads on the board demo and maybe a manual fan only switch on the furnace as some old units have. Maybe you are sitting back with the fishing rod now. Still an awesome video !
Thanks for the awesome video. People like you are what make the internet so great..............d
That's a great setup you got there.nice
Mr. Mark you are a genius
Best explenTion yet..thanks
Your explanation is quite good. They way you did this for testing it wouldn't take much to convert a gas furnace to electric, with the right parts and some furnace modding. I've looked up the parts I'd need, it would be much cheaper to convert than to buy a completely new furnace. I'm a DIY guy, with the knowledge I do have and some logic it shouldn't be any trouble... thanks for your informative video.
good job mark. I like your videos. very easy to understand. God bless my friend
Thank you for the very simple and informative video. Much appreciated
Great video brother. Perfectly explained and easy to understand from start to finish with sequence of operation. Subscribed!
Very good data, Mark.
Very nicely done!
Great video. You make it so easy understand.
Thanks for the video. Happy new year to you.
Great video Mark!!
Great lesson Mark. Thanks
Good demonstration 👍🏽
Great video very educational. I recently bought a Miller e3ed 015h and was told it had sequencers. I found out after it was installed that it had contact breakers instead. Sequencers make no noticeable noise turning on or off but contact breakers on the other hand do. My new Miller furnace is located right next to my bedroom door and all i hear all night is click clack click clack that sounds like a rat trap going off every time the furnace comes on and goes off. How can i change to sequencer?
Excellent demo. This will help me out.
great demo
Excellent Tutorial!!
Awesome Presentation Man. Thank You !!
Very nice demonstration.
Great video 👍🏼
Good Job! simple and clear. thanks!
Very Cool. I enjoy your demonstration. Thanks for doing this. can you explain how it should work if you add the 3 limit switches and variable speed furnace motor? Thanks in advance
very neat , i learned a lot!THANKS!
Good illustration
thanks Mark, your awesome.
Thank Mark, Your awesome!!!
Yes, 24V is fed simultaneously to all three sequencers.
Outstanding information sir! Thank you for this.
Great demo, Thank you
Very cool. Thanks for the video!
Teaching-your calling .awesome.
I have replaced my sequencer 5 or 6 times....is there something else that would keep causing it to fail?
Excellent demo. Thanx
Good work thanks alot brother🙏. I learned alot very fast👍
perfect video
thankyou , great work
Does it matter if your sequencer has 1 and 4 on one side and 3 and 5 on the other side and the replacement has M5 and M6 and M7 and M8? If it matters then can the replacement still be used? If so how would I wire the replacement? Where would I place the connection that was previously on 1 on the old sequencer on the new sequencer with M5, M6, M7, and M8? Same with 3, 4 and 5? The reason I am trying to stick with this sequencer is because the timing of it is the closest to my old sequencer. I am not sure it matters but from what I read timing has to match but sequencers with that timing no longer exist. Seems to be completely phased off as it is not in most sellers records or inventory. Because of this I could not find an exact cross reference for it.
love your video,make more please!
awesome instructional video. thanks.
thanks for the help, I am installing a strip in my old school Miller Package Unit and will have to rig the system on my own. (don't worry just a 5K on a 30amp line)
My furnace will shut off with the thermostat MAYBE 20% of the time, or it will run until I have to shut off power at the breaker. I changed thermostat and it still does it. is it the sequencers?
In a situation like this. Do the thermostat have to be set to a high temperature in order for all the heating elements to come on or do it calls for all the heating elements to come on if that the demand load is not met. In other words if it’s really cold and the thermostat is set to something like 70° would that cut all the heating element or would you have to turn the thermostat up higher?
Last night my husband was reconnecting the wires to everything because we just replaced the blower wheel, when we flipped the power and turned the thermostat on, only the outside unit came on and there was a humming coming from the inside unit. We turned everything back off and left it alone for now. I saw the delay in your video after turning on the thermostat; so my question is, is that what was happening with our unit when we turned on the power?
Will a bad sequencer cause the elements to turn on without the fan running?
I have woken up to a light white cloud of smoke and the smell of burning(sweet).
The only thing I have noticed is that the unit itself gets really hot even when it’s not running.
Very helpful. Thanks!
Very good!!
this is kiss (keep it simple stuped) very nice and clear congrats. from chihuahua mexico
thanks for the post, my electric furnace works like it should, then after a while it will not come back on. after taping on the element front plate it works again... the breaker was changed last year all wires and terminals look fine any ideas? thanks...
Loading... Loading rich text... « Plain TextCheck Spelling Resume Editing Hi, I found your explanation very good. Can you help me? I have had three (3) Techs fix my electric furnace / wood. I am interested on the electric side of the furnace. Techs have changed sequencers now I think sequencers are out of order.PS I would like to change all sequencers for a proper order of operation and spares.Sequencers are now burning, not lasting one heating season.I am now held PRISONER by my furnace .Sequence now in operation of order:1 - 12S22 H24V 305448 2 - 14S22 H24V 305815 24A34 - 21 4/5 H1 - 20 C40 - 90 H1 - 2 0 C1 - 60 1/3 H30 - 90 C1 - 30 A0940 A1044 3 - 14S22 H24V 305815 4 - 14S22 H24V 305815 4/5 H1- 20 C40 - 90 4/5 H1 - 20 C40 - 90 1/3 H30 - 90 C1 - 30 1/3 H30 - 90 C1 - 30 A1442 A1040Elements are 5KW @ 250 V There are four (4) but only three (3) are connectedTotal three (3) draw 65.5 Amps.!st stage 25amps 2nd stage 45amps 3ard 65.5 amps state set 17cel furnace starts every 40min runs for 10min.Very gratefulPhil
Sans Serif
Thanks good clip
will the sequencer also control the ac blower on a dual unit
Thank you very good video
Nice job
you are a savior lol thank you
great video thanks
Yes, thank you very much.
Had sequencer replaced in electric furnace and now there's a noise that sounds like a fan or blower motor -- a ticking sound. Could that have been from the sequencer install?
Thank you so much. I learned alot
our triple stack sequencer went out on our electric furnace, the tech put in a double stack cause he did not have a triple. he also said the coil in the furnace was too small for the unit and he was not sure why they put in the smaller coil. the start of all this was we woke up kicked on the heat and after an hour the house was not warm and it was blowing cold air! The tech is going to check with his company and see why smaller coil was put in. so this should get interesting.............
Excelente
very nice!
Are all three sequencers getting 24 VAC simultaneously?
Hi, Can I use M1 & M2 for element if M3 & M4 contacts are burnt (same sequencer?Can you talk about timing on sequencer & 4/5 & 1/3 on same sequencer?Thank You Phil
Nice. Thanx
Thank you . Now I know.
i'm hoping to get my gran parents Coleman evcon heater and hook it up and see what makes it tick it still works they might replace it with a heat pump
Hi, I have an old electric fan heater which I had to take a part to fit in a smaller case, I messed up the wiring!! can any one explain how to join/ connect the power, fan motor to the 2 heating wires please? thank you very much
Well, now that I know what this thing is that I removed from my furnace and I'm holding in my hand, I'll reinstall it to test it. Thank you.
hi, my electric furnace makes a click from time to time and I thought that"s something wrong. I have no heating problems. if I understand well it's the sequencer who's making the noise. is it normal to hear this noise ?
Thank You
very interesting
Thanks!!!!!
Hi, I would like to change sequencers in my electric/wood furnace. I have had 3 techs work on sequencers. Would like 4 new sequencers to put back in sequence and spares. Can you recommend .Now held prisoner by my furnace.Summerair 5kw 250V The sequencers in order of operation now:1 - 12S22 H24V 305448 24A34-21 H1 - 20 C1 - 60 A0949 2 - 14S22 H24V 305815 4/5 H1 - 20 C40 - 90 1/3 H30 - 90 C1 - 30 A1044 3 - 14S22 H24V 305815 4/5 H1 - 20 C40 - 90 A1442 4 - 14S22 H24V 305815 4/5 H1 - 20 C40 - 90 1/3 H30 - 90 C1 - 30 A1041 Fan / high limit/ ? limit 120v connected to #4 sequencer Very Grateful Phil
this is in series?
The hot side is wired in series not parallel just like a light switch.
Can you please show a diagram?
How to install fire alarm
Couldn't you just have a microcontroller trigger 4 SSR's to flip on an off in reaction to a temperature sensor in any way you program it?
THEN IT WOULD BE A PIECE OF SHIT ALWAYS HAVING PROBLEMS
So reliable enough for aeroplanes, helicopters, controlling reactors, just not enough for a furnace...
COST
Vert good.
After my thermostat gets to temperature and switch turn off the blower still runs what could be causing this
First, make sure you can hear the relay turn off at the thermostat, just a click when you expect fan to stop. Try the fan switch separately. On an older furnace especially, next thing to check is the delay then the relay behind the upper furnace cover. OK, Warning, only do this if you are comfy with deadly power. There may be a silver cigarette carton sized object with a slide controller on it. Tap that lightly with a non-conducting object. Fan may just shut off with the tap. If so, could be this delay unit, but may also be the relay near it...looks like a shiny ring box with wires attached. Tapping this might also shut off fan...but it may well be more hidden and hard to get to. Newer furnace may have relay on the IFC, the control board. In any case we're talking LIVE power circuits here, so if tapping without the power shut off use only a non-conducting object and stay clear of any contacts, or consult a pro. The delay will be very expensive (>$100); the relay will likely be pretty cheap (
"I'm gonna plug my power in.....ZZZ-ZZZZZZbbbTTT😜😢😲😭😫😛🤤😠😣
Thank you