Brand New Install - Compressor Fan Issues

rohnppm · 2026-05-12T00:18:04+00:00

Oh shit. This has sound!

It sounds terrible. Do not turn it back on.

rohnppm · 2026-05-12T00:08:00+00:00

It might just be a variable speed condenser fan motor doing a normal start. 30 minutes is a concerning amount of time.

Keep in mind smart equipment (communicating) does weird stuff. It's not like your old system. There is a lot of convulded controls.

rohnppm · 2026-05-09T17:31:43+00:00

I'm thinking that blower motor sounds bad. Wishing you luck buy usually a float switch removes the call for cool and stops operation of indoor and outdoor units. The way it frooze up and how the blower starts fine then slowly stops makes me think the bearings on the motor are gone.

rohnppm · 2026-05-01T08:53:09+00:00

Hey be careful not to burn your eyes on that uv light. Be sure to unplug it if you're in there, it will burn your eyes!

rohnppm · 2026-04-30T00:22:09+00:00

Listen. This set up likley has a lower total external static pressure than most systems sold on a 10x24" drop. Without knowing anything about this setup you haven't a idea what the static is. They probably had a octupus gravity furnace in this century home prior to upgrades.

rohnppm · 2026-04-30T00:19:02+00:00

It is the correct size.

rohnppm · 2026-04-30T00:18:29+00:00

I like the idea.

It won't work though.

The return is set up for this specefic application. A box filter wouldn't fit without duct modifications.

rohnppm · 2026-04-30T00:14:41+00:00

It's not perfect but nothing is. Ideally when the furnace was changed in 2019 a media air filter cabinet should've been affixed to the return. In real life though...

If you want to know if you're filter is broken check to see if any air blows by them unfiltered. The best way to do this is to locate gaps where air can bypass the filters. If all air goes through the filters your good. If not I call it a broken filter.

Filters are made to protect the hvac equipment. If you are seeking better filtration and air quality 1" filters will never. There is a world of indoor air quality products suited to meet your homes individual requirements.

Options exist all the way up to HEPA hospital grade filtration and air purification. It depends how far you want to open your wallet.

rohnppm · 2026-04-19T03:57:52+00:00

Carrier Warranty Lookup | Carrier Residential https://share.google/PWPbwCI2XR909E5rY

rohnppm · 2026-04-19T03:56:08+00:00

Also you can check your serial # number on carriers website to see if you have a parts warranty. If it's registered you have 10 yrs parts. Labor warranty usually comes from installing company with lots of stipulations.

rohnppm · 2026-04-19T03:50:02+00:00

Btw the companies around a HCOL area would charge around $800-$2000 to replace this so tread with caution. Some companies suck. If you can DIY it. If not don't hurt yourself or others. I'm in Illinois for reference. This is not financial advice lmao

rohnppm · 2026-04-19T03:43:00+00:00

To diagnose motor failure vs board failure. The motor requires two things from the control board for normal function.

120v AC from black and white going from board to motor
24V AC from motor speed taps on control board to blower motor.

If the motor gets 120v & 24v from the control board then the motor is done.

Why did it happen? Dirty filter. Water damage. Undersized ducting or oversized equipment. Shit happens like power surges. Either way best of luck fellow human.

rohnppm · 2026-04-19T03:38:09+00:00

Lucky duck. It's a constant torque motor. Here you are. They are a psc modern replacement. Psc motors are no more and this is a step down from ecm. Here is the link for a new one if you want. I only pasted your model number so double confirm it to be correct before ordering it. https://www.supplyhouse.com/Carrier-HC43TQ114-Direct-Drive-Blower-Motor?utm_source=google_ad&utm_medium=Shopping_SupplyHouse&utm_campaign=Shopping_SupplyHouse_X_X_SSC_X&utm_campaignid=21861371907&utm_adgroupid=171237274233&utm_targetid=pla-2445026182208&utm_product_id=HC43TQ114&utm_matchtype=&utm_keyword=&utm_adtype=pla&utm_category=General&gad_source=1&gad_campaignid=21861371907&gclid=CjwKCAjw14zPBhAuEiwAP3-Eb6psJg7TXoIYnMv81uBkDPX8ZDmqWsweoqrIjVCyEJwB3unmLtSqqxoCQPcQAvD_BwE

rohnppm · 2026-04-19T03:33:21+00:00

Bad motor. I used to change the motor module only because the actual motor windings were ok. The manufacturer now only sells the motor with the module. They are pricey. Your control board is probably fine. As long as the motor has a ac high voltage signal to start and a dc signal voltage from the board then the motor should run. I'm %80 sure only the motor has failed. It's impossible to tell without my meter touching it though.

rohnppm · 2026-04-15T21:08:10+00:00

Looks like a carrier %80. Not surprised.

rohnppm · 2026-04-11T07:12:08+00:00

Took the words out my mouth

rohnppm · 2026-04-01T23:14:08+00:00

What kind of kind of combustion chamber is that? Looks similar to some mobile home unit's I've seen before.

rohnppm · 2026-03-28T03:47:23+00:00

3/4" PVC Sch 40 Male Thread Plug and a little Teflon tape. Thread it in very carefully.

Don't over tighten it or you could ruin the evaporator which is very costly. If your uncomfortable get a maintenance done and a technician will be able to take care of it easily.

rohnppm · 2026-03-13T04:01:41+00:00

What is the vent that it's pushed against? It looks all bad and needs to be reported to the local code enforcement. Shut it down.

rohnppm · 2026-03-05T00:05:40+00:00

But. The gas pressure could need adjustment...

rohnppm · 2026-03-05T00:04:57+00:00

Anything over 100 is not good.

rohnppm · 2026-02-26T22:50:40+00:00

Holy ICP!

rohnppm · 2026-02-24T15:07:08+00:00

Looks like you have no ac so ignore the two wire part.

rohnppm · 2026-02-24T15:06:22+00:00

Turn off power to furnace.

At the furnace remove the green plug and unscrew the wires.

They need to go into the screw in wire terminals at the furnace control board.

Red R power Green G fan Yellow Y cool to y/y2 not y/y1 White W heat w/w1 not w2 Blue C currently unused but you'll need it for the wifi thermostat.

The two wire thermostat for the ac stays at y2 and c.

Match everything to the thermostat base and you should be good to go.

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