C340366P06 - Trane OEM Furnace 3" Replacement Limit Switch L180-30 Is the part number and description to help with ordering. Thanks, hope it’s what I need…2 weeks wait even thru Amazon, didn’t find it locally.
It's not necessary to turn off the gas valve once the furnace is powered down. It's not a good idea to bypass any thermal switches. There's no relay in them - it's a bimetalic strip.
remember to check the "resettable switch". Small button in the middle of the switch needs to be reset once you have checked all of the rest. The video shows him pointing to this switch at the 5:34 mark. It has plenty to do with your furnace NOT running if the switch has tripped and not been reset. That was the issue with mine (after changing the filter and making sure the pipes on the outside of the house were clear).
Mad props man. Thanks for the video, hornets had built a nest in the intake tunnel, was choking out the furnace, removed the nest and the furnace works.
None of this worked for me. I can understand why this might limit switch might trip during operation (due to an overheating condition). But with my XR95, as soon as there's a call for heat the furnace blower and the induction blower starts and continues running but the gas valve doesn't open. Meanwhile getting the 4 red blinks. Tried bypassing the limit switch, but no go. Any advice?
Hi, great video. I see that you replaced P06 with a P01 switch. Mine is P05 and furnace is xv95. I cannot find P05 in Canada, You think I can replace it with P01 or P06 ?
Worked to get me to the general problem, but mine was series in with another Pressure switch P08, which was the one that tripped and, it was resettable with a small button in the center. I changed my filter which seemed to be causing too much backpressure
The internet is undefeated once again! thank you! I determined it was the same limit switch after jumping it briefly. Nobody would sell one to me because I am not a dealer! So.....I tapped the switch and reinstalled it like you said...and VOILA! It worked. Wow. Just wow! this should buy me a day or two to order a new one from Amazon.
The wires connected to the paper clip to test. If it works, you know what you will need. You can run like this, but make sure your filter is clean, if not leave out and replace asap. Also vent/exhaust pipes clear.
Hey much love all the way from Boston Massachusetts to Canada my man. Thank you so much for this video. I did what you said to do in the video and now I have heat.
Change the filter and switch fan to on and the heat will be back on. This will make it work again and not have to do the paper clip until the part arrives.
This is very poor information, if you continue to make these videos and people follow your direction and their house burns down, you are liable, those are not relays they are safety limit switches, you need a meter to verify if those limits are tripped open, please allow a professional to do these things
As in the video, the little window on the lower door panel, look through that, and you see flashes, that will indicate a error code. I not a furnace tech, but thought the video would help
I can’t say thanks enough for this video, my furnace randomly stopped blowing heat last night at 3am and I couldn’t figure out why until I saw your video. I did exactly what you said and my heat is now working once again!
This worked fore last night at 10pm as I have the same furnace and needed to know which item was the switch to hit. Got it to ignite again and the flames turned on. Hopefully it doesn't die out again but if it does these are fairly cheap to replace. Do you know if there is a specific model# to buy? I couldn't find one that said P06 on it.
My limit switch is black and has a single piece in the back. I ordered one for my Trane furnace and it looks like the one in this video. Is it fine to use? I bought this one because it was the closest matching ID to my current black switch (all other single black switches had totally different ID's).
You need to find the restriction in air flow that caused the limits to trip. Bad filter, clogged return duct, restricted chimney, A/C coil dirty. You need to follow a specific set of tests in order to keep the greedy and often not too bright repairmen away.
Thank you!!! My Trane is older (1989) and the part is different but in the same place. It has a tiny pin that I just pulled out, put back in, reconnected everything and it worked. I tried everything in my bag of tricks to fix my furnace with no luck. We FROZE last night. Woke up this morning and this was the last video (of many) that I watched before calling an HVAC repair shop on a Saturday and likely spending hundreds. So grateful!
Worked on my Trane XV80. I also found that the air filter was grossly clogged up. I'll have to check the part for continuity and replace the filter, but feel confident that I can resolve this issue and saved a ton of money. Thanks!
