Bad limit switches are often a symptom of an overheating furnace. Basically it fails from constant and frequent cycling. It's good practice to check the temperature rise while changing a limit to spot any abnormal operating conditions.
@UltraGamma25
Жыл бұрын
I don't think he cares =/
@fry285
Жыл бұрын
@UltraGamma25 well he is making videos of himself not doing a proper job. Probably carpet growing on the coil.
@DreStyle
Жыл бұрын
Your never to good to learn
@liyuanshi2377
Жыл бұрын
He's a handyman not a licensed technician
@B_HVAC
Жыл бұрын
@Michael Gordon-bingo
@josephmettes9147 Жыл бұрын
If the furnace and/or A/C was ran without a filter then the blower wheel and/or evaporator coil is likely clogged with dirt/dust causing low air flow causing the furnace to over heat repeatedly causing that high limit to go bad. I would definitely check both of those along with temp rise but for a quick fix not a bad repair 👍
@AmericanFarmerHVAC2024
Жыл бұрын
I was just gonna say that. And then the heat exchanger needs to be checked.
@johntodd9290
Жыл бұрын
Blower wheel too.
@jimbarron8688
7 ай бұрын
Defo check the upstream side of the A-coil. If it's OK and Delta is within spec you got away easy. A bad heat exchanger would likely trip the roll out switch.
@NYCHvac Жыл бұрын
Nice job 👍🏼. The fact that you guys cleaned the unit a bit after the simple fix gets a follow from me.
@PawsumGaming Жыл бұрын
The good ole thumbometer.
@someguy4476 Жыл бұрын
Thumb-ometer. LOL! Love it.
@PaulMetzler-gu6ew Жыл бұрын
My dude, you missed a lot. With no filter the coil is likely clogged, causing the limit to trip. Pull the blower for cleaning, then look up thru the heat exchanger to view the coil and look for cracks. Good chance of cracks, then sell them a new furnace.
@chriswhite2346 Жыл бұрын
I guarantee there are cracks in that heat exchanger and its in the snap rings right behind that "faulty" limit switch
@tahiriahmed2918
Жыл бұрын
Especially American standard
@TheDeafMechanic Жыл бұрын
I would recommend investing in a borescope if you don’t already have one. Very handy to be able to inspect a heat exchanger to verify it’s not compromised especially at an older age as that unit. Bad limits are usually a sign you’ve got a crack or hole.
@goshohgosh4568 Жыл бұрын
Would you do some longer videos one what diagnosis actually looks like?
@1776cootsflybynight Жыл бұрын
Ran with out a filter and the the limit switch is bad...I would be checking the evap coil to make sure that isn't clogged.
@caelanholder3765 Жыл бұрын
No CO check? Would’ve at least popped my camera into that heat exchanger
@kittehofdovrefjel Жыл бұрын
Huh. We had two of these this week. Both on older Tempstars. Must be the end of winter special.
@hotfeva9843 Жыл бұрын
The company I work with offers a yearly plan, comes with 2 cleanings a year 1 heating and 1 Ac. Those cleanings save a lot of people money from these kinds of mistakes (no filter) 🤦🏿♂️just last week three of my customers have been running there units with no filter all the units were in the attic I convinced them to convert to a "permanent" filter and signed them up for the yearly plan. All three clean ups took me every bit of 1&1/2 hrs but this will save them time money and a headache in the future
@davids970 Жыл бұрын
Wondering if the evaporator is caked in dirt from not using a filter and the limit is tripping because it’s so restricted. Was this the fix or did it trip off again?
@TapRackandBang Жыл бұрын
Idk if it’s cause I haven’t been on YT shorts in awhile or what but I haven’t seen / am behind 20 of your shorts! 😤. Been a binge night tonight for your YT shorts 😎 🍻
@HandsomeOrHandy
Жыл бұрын
Well enjoy, I had one a little over a week ago the night my nephew was born and I got to deal with a backed up sewer line during a blizzard.
@TapRackandBang
Жыл бұрын
@@HandsomeOrHandy holy smokes! Always gotta love those sewer line jobs 😂 smells like money! Honestly it is truly amazing how much you know and can work on. I hope to have even some of this knowledge as I keep getting older. Also congrats about your nephew! So exciting when a new family member joins the ranks.
@ParabellumX Жыл бұрын
Could you start showing more of your furnace service calls? Also, is there anyway that you could leave the problem out of your title - don't tell us what the problem was until the very end of the video? Long story short, I'm in school right now for HVACR. I love watching KZread videos of other service techs diagnosing heat pumps and gas furnaces, but I'm discouraged by the fact that I already know what the problem is before I get to the end of the video, because it's in the title or description. I love a challenge. Heat pumps and gas furnaces give me the opportunity to be presented with various problems (that are associated with these units), and to find the solution. Keep up the great work. 😏
@HandsomeOrHandy
Жыл бұрын
I’ll see what I can do about that.
@ParabellumX
Жыл бұрын
@@HandsomeOrHandy Thank you! 😊
@spdergod Жыл бұрын
Parts in stock again! Who is this guy? :)
@HandsomeOrHandy
Жыл бұрын
A hoarder who needs a bigger shop.
@donaldsingh8799 Жыл бұрын
it will be nice to see what you are doing?
@You-Can-Do Жыл бұрын
Didn’t even check the evap coil
@aksk8629 Жыл бұрын
I love seeing how little waste these create!
@johnc7512 Жыл бұрын
Do you work on many electric only furnaces?
@HandsomeOrHandy
Жыл бұрын
No most are natural gas
@bubbaharrod2530 Жыл бұрын
You should always say what the symptoms are before you fix it or nobody knows wtf your doing
@DreStyle Жыл бұрын
There is no limit .... -2 unlimited
@jorgehuizarsr8519 Жыл бұрын
Ooooooon to the next one ✌️
@WoogieboogieOG Жыл бұрын
Might of wanted to blurr the number in the beginning. Just fyi 👊🏻🍻
@mikemarston2489 Жыл бұрын
Sorry hvac guy here asking questions why is their a thermometer/grill on it straight off the furnace. What difference does that make off ur normal thermostat?
Пікірлер: 42
Bad limit switches are often a symptom of an overheating furnace. Basically it fails from constant and frequent cycling. It's good practice to check the temperature rise while changing a limit to spot any abnormal operating conditions.
@UltraGamma25
Жыл бұрын
I don't think he cares =/
@fry285
Жыл бұрын
@UltraGamma25 well he is making videos of himself not doing a proper job. Probably carpet growing on the coil.
@DreStyle
Жыл бұрын
Your never to good to learn
@liyuanshi2377
Жыл бұрын
He's a handyman not a licensed technician
@B_HVAC
Жыл бұрын
@Michael Gordon-bingo
If the furnace and/or A/C was ran without a filter then the blower wheel and/or evaporator coil is likely clogged with dirt/dust causing low air flow causing the furnace to over heat repeatedly causing that high limit to go bad. I would definitely check both of those along with temp rise but for a quick fix not a bad repair 👍
@AmericanFarmerHVAC2024
Жыл бұрын
I was just gonna say that. And then the heat exchanger needs to be checked.
@johntodd9290
Жыл бұрын
Blower wheel too.
@jimbarron8688
7 ай бұрын
Defo check the upstream side of the A-coil. If it's OK and Delta is within spec you got away easy. A bad heat exchanger would likely trip the roll out switch.
Nice job 👍🏼. The fact that you guys cleaned the unit a bit after the simple fix gets a follow from me.
The good ole thumbometer.
Thumb-ometer. LOL! Love it.
My dude, you missed a lot. With no filter the coil is likely clogged, causing the limit to trip. Pull the blower for cleaning, then look up thru the heat exchanger to view the coil and look for cracks. Good chance of cracks, then sell them a new furnace.
I guarantee there are cracks in that heat exchanger and its in the snap rings right behind that "faulty" limit switch
@tahiriahmed2918
Жыл бұрын
Especially American standard
I would recommend investing in a borescope if you don’t already have one. Very handy to be able to inspect a heat exchanger to verify it’s not compromised especially at an older age as that unit. Bad limits are usually a sign you’ve got a crack or hole.
Would you do some longer videos one what diagnosis actually looks like?
Ran with out a filter and the the limit switch is bad...I would be checking the evap coil to make sure that isn't clogged.
No CO check? Would’ve at least popped my camera into that heat exchanger
Huh. We had two of these this week. Both on older Tempstars. Must be the end of winter special.
The company I work with offers a yearly plan, comes with 2 cleanings a year 1 heating and 1 Ac. Those cleanings save a lot of people money from these kinds of mistakes (no filter) 🤦🏿♂️just last week three of my customers have been running there units with no filter all the units were in the attic I convinced them to convert to a "permanent" filter and signed them up for the yearly plan. All three clean ups took me every bit of 1&1/2 hrs but this will save them time money and a headache in the future
Wondering if the evaporator is caked in dirt from not using a filter and the limit is tripping because it’s so restricted. Was this the fix or did it trip off again?
Idk if it’s cause I haven’t been on YT shorts in awhile or what but I haven’t seen / am behind 20 of your shorts! 😤. Been a binge night tonight for your YT shorts 😎 🍻
@HandsomeOrHandy
Жыл бұрын
Well enjoy, I had one a little over a week ago the night my nephew was born and I got to deal with a backed up sewer line during a blizzard.
@TapRackandBang
Жыл бұрын
@@HandsomeOrHandy holy smokes! Always gotta love those sewer line jobs 😂 smells like money! Honestly it is truly amazing how much you know and can work on. I hope to have even some of this knowledge as I keep getting older. Also congrats about your nephew! So exciting when a new family member joins the ranks.
Could you start showing more of your furnace service calls? Also, is there anyway that you could leave the problem out of your title - don't tell us what the problem was until the very end of the video? Long story short, I'm in school right now for HVACR. I love watching KZread videos of other service techs diagnosing heat pumps and gas furnaces, but I'm discouraged by the fact that I already know what the problem is before I get to the end of the video, because it's in the title or description. I love a challenge. Heat pumps and gas furnaces give me the opportunity to be presented with various problems (that are associated with these units), and to find the solution. Keep up the great work. 😏
@HandsomeOrHandy
Жыл бұрын
I’ll see what I can do about that.
@ParabellumX
Жыл бұрын
@@HandsomeOrHandy Thank you! 😊
Parts in stock again! Who is this guy? :)
@HandsomeOrHandy
Жыл бұрын
A hoarder who needs a bigger shop.
it will be nice to see what you are doing?
Didn’t even check the evap coil
I love seeing how little waste these create!
Do you work on many electric only furnaces?
@HandsomeOrHandy
Жыл бұрын
No most are natural gas
You should always say what the symptoms are before you fix it or nobody knows wtf your doing
There is no limit .... -2 unlimited
Ooooooon to the next one ✌️
Might of wanted to blurr the number in the beginning. Just fyi 👊🏻🍻
Sorry hvac guy here asking questions why is their a thermometer/grill on it straight off the furnace. What difference does that make off ur normal thermostat?