The float switch was exactly what caused our system to kick off. Thank you for mentioning it first!

Sir... I sincerely thank you! It's a cold Sunday morning in December. We woke up to no heat and a blank thermostat. Your video guided me to a simple solution: a pair of double A batteries. Thank you again!!!

Thank you! The problem was the float switch. I opened it to pour in some ac build up remover. Was getting super frustrated and tried wiggling around and reinserting the tab for it and it worked.

Thank you, you just saved me and my family $$$, ended up being a little moisture in our drain line causing the switch to show water... drained it and we are good to go!!! Again, THANK YOU VERY MUCH!!!

I live in a condo and yeah the float switch jumped. your video saved my day, thanks man!

Thank you, son, for this video. My thermostat is brand new (less than a week installed), and went blank. I know it is hard-wired, but I put batteries in it and it came back on, so at least for tonight it is working. I have a technician coming in the morning.

My thermostat goes blank most of the time, and comes back on occasionally. Any ideas on what to do?? Thanks I replaced the batteries, same deal.

Well done, concise video. Much appreciated. I rarely need anything on HVAC, but subscribed out of gratitude. Thanks.

@NewHVACGuide

28 күн бұрын

Thank you!

Thank you for the video. My central air unit/furnace shut down like it should because my p-trap was completely clogged. I replaced the p-trap with an E-Z trap and the AC has been working great. The water is supposed to drain to the outside of the house, but I don't see any water coming out. I heard that there should be about 1 gallon of water draining every two days. I live in a fairly new single level house. There's no water leaking around the central air unit/furnace or in the rooms beside the furnace closet. Where's the water draining? Should I be concerned? Thank you.

Thank you man. Leaned senser on roof all started but pump. There is TH4B - Luxaire unit have lead on the side, and black sensor underneath. I moved that sensor before I go on the roof, when cleaned come back, and put lid back, reset unit, and nothing. Pump won't start

Thanks! My water drain was clogged, and it was tripping the float switch.

Thank you Sir!!!

Excellent video....really informative......thanks so much!!!!

@NewHVACGuide

23 күн бұрын

You’re welcome!

Thank you! ❤❤

Good stuff Brudda. I love listening to true professionals

@NewHVACGuide

2 ай бұрын

Thanks pal

I replaced the batteries in the thermostat in a fifth wheel im staying in but it's still blank. Heating works. Ac works (even auto) but it just shows blank.

My daughter just bought a house. The Carrier unit, when heat is on... will start making a random clicking noise. We noticed when it started clicking, the thermostat is blank. It's an old school thermostat. We have to flip it to off then back on to get the thermostat to wake up. Not sure what is going on with it.

My heat was running fine a couple hours later my thermostat went blank. Ive never had batteries in my thermostat, so i put batteries in and the display of the thermostat came on put my heat or AC still would not kick on?? What is my issue???

thank you so much! I came home to a Cold House.. I needed batteries as well!

@NewHVACGuide

4 ай бұрын

You’re welcome!

Thanks for sharing your knowledge. My buddy called me this afternoon (only 95 today) to tell me that his thermostat screen was blank. Thanks to your video I was able to suggest that he check his Float Switch. Sure enough, all he had to do was give it a twist and his system is back online. His house was only up to 81 .... but it wouldn't have been a comfortable night's sleep.

Good info

@NewHVACGuide

5 ай бұрын

Thank you!

Why not TELL US what to do about a faulty float switch???

Water drain line in attic froze ... water tank filled ... turned off Thermostat. Drained tank ... all OK. Thanx!

I got up for work, and my house was super hot like 85 with thermostat set at 73. So I checked, and my thermostat is blank and replaced the batteries and still blank, but the furnace was still going and blowing hot air... probably way hotter than it's ever blowed. So what would cause this as once I got to the basement the furnace stopped blowing

@crystalbishop9928

3 күн бұрын

Same thing happened to me too I'm wondering the same

I have a serious question that no tech seems to be able to answer. What causes the compressor to make a rough sound when it kicks on? It seemed to stop at one point when it was recharged after i had a leak. But then it starting making that loud sound on start up again in just a few days. I live in FL and findging a good, honest tech that doesnt rip you off is hard.

@haljordan9160

11 ай бұрын

Recharging refrigerant has done nothing unless the leak was repaired. That electric motor in that compressor needs vapor refrigerant to cool those windings. The mechanical portion in that compressor needs the oil for lubrication of the moving/mechanical parts, no matter what type of compressor. When you have a leak & run low on gas, the compressor motor windings are not being cooled; along with losing refrigerant due to a leak, you are also losing oil that is needed for lubrication.

@haljordan9160

11 ай бұрын

Adding gas without finding the leak is just buying time. That compressor is taking a beating.

@haljordan9160

11 ай бұрын

Running a compressor with a leaker, especially w/no LPCO (Low Pressure Cut Out) means the compressor is having a rough go.

@haljordan9160

11 ай бұрын

Good luck.

@haljordan9160

11 ай бұрын

Amp draw numbers will tell you the health of the compressor

I have a Honeywell WiFi smart thermostat. Last night it kept shutting down and going dark every 15 minutes or so and then starting back up. Anyone else have that problem? I believe it to a model RTH9585WH.

@earlkarp4142

5 ай бұрын

I am now having this same issue. It appears to be rebooting itself. Have you found a resolution to this issue?

@jmonkey1111

3 ай бұрын

​@earlkarp4142 any solution? Same issues

I dropped the unit onto the ground and think it broke, it's now blank

Mine said I needed to change the batteries on it. I put brand new batteries in it and then the screen went blank, but lights up....?

@NewHVACGuide

8 ай бұрын

Oh no! Maybe the stat is bad?

@mfb6310

8 ай бұрын

@@NewHVACGuide the what?

@roberth7559

8 ай бұрын

The thermostat (stat) may be malfunctioning

@mfb6310

8 ай бұрын

it's the battery connection - don't press them it too much, don't attach to the wall to hard....that's what I learned, after running around checking drain plugs, fuses, re-re-replacing batteries - it'd light up and show stats but then disappear...I'd get the screen to reappear and v.e.r.y. gently put it back on the wall.............. yes.

@mfb6310

8 ай бұрын

never mind. duh. but while I'm here again - my stat wasn't bad, but the battery connections were soooo sensitive. Batteries had to be set just so, and the stat just so on the wall.....

My emergency switch was off 🤦

@NewHVACGuide

Ай бұрын

🙂

Our system has no batteries

Mine goes blank in the spring and summer, and less often in the winter. When it does, the outside unit shuts off and the temp in the house climbs without me being aware. I have to unplug and replug the thermostat head unit, go in the garage and throw the heat breaker along with the a/c breaker, wait several minutes turn the breakers back on, and 5 minutes or so later the outside unit turns on and the house cools down (or heats up in the winter). I rent, and this house is an overpriced piece of junk. Its more trouble than its worth to call the property management company so I just grin and bear it.

Put in new batteries heat still not on

@NewHVACGuide

5 ай бұрын

Sounds like you may need to call a pro

better blank than woke 😂

@skyhawk_4526

6 ай бұрын

Kinda the same thing sometimes. Lol.

as usual 1 yr and the thermostats go, if we stop putting up with junk being made we might survive!