Trane Furnace Info

Home Depot Employee

Your wrong Jeff and as a former TSA for Trane Co. we advised it on occasion for long t-stat wire runs. Also needed when using factory twinning kits, unless you like visiting your customers furnaces every few days for free?
The fuse in on the low volt side as you may or may not know.
Yes on line voltage (120) 20A is 12Ga and 15A is 14Ga max but we are not talking about line voltage here are we?

My fault for not mentioning my credentials when posting

Erich Ruger_2

Trane Furnace Info

This concerns a Trane 60k btu #UY060R9V3V Furnace.

I have used “The Wall” for more oddball things like wood fired radiant heat and changing the fan speed on my furnace for use with the woodstove.
Now I have a question about my Trane furnace that is my “main” heat and AC.
I don’t run my AC much during the summer thanks to my many oak trees. But Sat I decided to fire it up and I got nothing, no fan, no LEDs , no nothing. It worked fine 3 weeks ago. I have power to the unit, I jumped the door switch and I have power to Line H on the board ,still nothing.
I am almost afraid to call the company who installed it 8 years ago. Is there anything more I can do? Should I bite the bullet and put in a service call? If I do need a new board where can I get one? How Much? Is it possible to get a used one?

Any Help would be great.


Erich

(518) 885-0463.

Thanks.

lchmb

verify

I would check the 3 amp fuse generally found on the circut board.

Home Depot Employee

Maybe simple

Sounds simple but many times overlooked. Did you check the fuse (3A) on the circuit board? Its Ok to replace with a 5A.

Home Depot Employee

Dup

Jeff Lawrence_25

NO.

It's not okay to replace a 3 amp fuse with a 5 amp fuse. Not only does that remove any remaining warranty, but could cause a fire. A fire is not likely but it's always a possibility, as are other problems. Trane put in a 3 amp fuse for a reason, instead of a 5 amp fuse.

Would you recommend replacing a 15 amp breaker with a 20 amp one? You're telling the OP basically the same thing with that statement.

To the OP, it sounds like you need to get a trained technician out to look at your furnace. The problem could be a minor one like a blown fuse, but it also could be something bigger. Do you want to gamble with your life or the life of your family?

Last question to the OP, has anyone serviced your furnace since it was installed?

Jeff Lawrence_25

Read

what the OP said.

The system has been installed for 8 years. If there was a LV problem, it would have needed the higher amp fuse long ago, not all of the sudden.

I regularly fuse the LV (24 volt) side of systems, especially when I change out a transformer.

For what it's worth, I did a transformer change for a customer a couple of years ago. He called me yesterday and told me his AC wasn't working. I asked several questions and it came to pass that they had removed a lot of English Ivy from around his outside units. In describing the problem, we discovered that he had torn the 24v wire from the house to the condenser. He repaired the broken wire, but still no AC. I told him that there was a spare 3 amp fuse in the blower compartment (I left it there on purpose) of his furnace and he replaced the fuse. It worked after that.

I don't go out every few days for free.

Electricity is the same, behaves the same everywhere in the USA. You don't give information out like that without knowing the system. Period.

Good luck in the future. I'm done.

Home Depot Employee

Bad cornflakes?

Calm down man
It is not unsafe to try something such as a fuse change once. (IE: H/W cad cell relay, instructs person to push reset only once)
If a breaker trips in your house, will you throw in the towel and call a licensed electrician or reset it at least once? Those with females and hairdryers know the answer to that. lol

Jeff Lawrence_25

don't eat cornflakes

READ what was said. UNDERSTAND what was said.

If once is okay 30 times will be okay too.

BTW, I've never had problems with breakers tripping in my house except during storms.

Have a nice one. I don't want to waste Dan's bandwidth, so if you any other questions, my email is valid.

Erich Ruger_2

UpDate

I found the problem. The neutral wire at the breaker panel had vibrated loose. I checked at the breaker and had 120 vac.When I rechecked at the furnace only 90vac. Double checked all the connections problem solved. I live close to an interstate and the connection sometimes come loose. I have not had this problem on the ground bus before but I will check it more often now. Thanks for all the help and I will be in touch when something goes wrong. What a great resource, and you don't treat people like they don't know anything.

Thanks Again.

Erich.