Air Conditioner Works Sometimes But Not Cooling On HOT DAYS Plus Bonus Footage

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Air Conditioner Works Sometimes But Not Cooling On HOT DAYS Plus Bonus Footage

Рет қаралды 18,566

Күн бұрын

Air conditioner works sometimes but not cooling on hot days. plus, bonus footage of a electric furnace element failure that caused a smell that concerned the customer.
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Пікірлер: 110

@HVACRSurvival 4 жыл бұрын

Here is a simple but all to common issue that you can run into. This was more for the new techs so don't beat me up for a easy call. I love the thumbs down...lol what did you not like if that was the case?

@jmemixx 4 жыл бұрын

Thanks . Keep the videos coming

@HVACRSurvival 4 жыл бұрын

@@jmemixx Thanks for your support 👍👍

@SuperJeremi10 4 жыл бұрын

I have a new unit that cools great when its cooler out but when it gets up I to the 90s 100s sun beating down it can nearly keep the house at 80 and runs constantly. The line is beat can cold though condenser fan is blowing out tons of heat. Unit also condensate out drain line. I have noticed at times high humidity on the house though. It's a 3 ton icp unit only a year old. Everyone keeps saying the unit is fine any suggestions. I do know the blower is set to high on purpose because if you set the speed any lower you can hardly feel anything out the vents. The old unit was a massive 5ton unit on a 1,000 sqft house it was replaced due to major issues rust and corrosion but when it did work it short cycled frequently. I'm not the one that had a 5 ton installed last owner did. Our unit cooled fine last year not it seems to not keep up.

@HVACRSurvival 4 жыл бұрын

Not enough information. How many tons is this system, was everything replaced, the indoor coil and air handler, the outside unit? How many square feet is the house, what state is this located in. What's the outdoor temp and humidity, that's the indoor temp and humidity, is the duct work properly sized for the tonnage, is it insulated, is this in a attic, crawl, out outdoor packaged unit. I assume your the homeowner and not a service tech?

@SuperJeremi10 4 жыл бұрын

@@HVACRSurvival I said all this in my comment it's a 1,000 sqft house 3 ton icp heatpump system with electric backup /aux heating. Everything is new except the duct work which is why the blower speed is set to high it still has the 5 ton duct system the vents hardly blow if it is set any lower. Unit heats perfectly with out needing the back up heat.

@GlenS123 4 жыл бұрын

Temperature drop across filter/dryer is only 1°F. At the pressures you were operating at 1°F is 5-6 psig drop, 2° - 3° would be huge pressure drop. Another good video, keep it up.

@HVACRSurvival 4 жыл бұрын

Thanks Glen👍👍

@throttlebottle5906 4 жыл бұрын

I just love when my A/C and heat run at the same time LOL

@HughesManHVAC 4 жыл бұрын

Awesome video! Nice of Bill to make an appearance...lol. I always learn something watching your videos! Well done 👍

@84DavidM777 4 жыл бұрын

I am fairly new to the comercial side of HVAC. Only came across twice on ECM motors. I remember a trane with about 14 wires coming out of the thing. On my case all the wires were going to the circuit board. I would have liked to see a quick run on the wiring and name on the manufacturer. Just saying, that's the kind of thing it helps. When I am on the field then I remember I have seen something specific on a video. But all and all thanks for the videos, your time and effort is appreciated!!!

@HVACRSurvival 4 жыл бұрын

Thanks David, this was a ecm constant torque motor that uses 5- 6, 24 volt leads to tell the motor to run at what predetermined speed.

@scrambler350 4 жыл бұрын

On my personal system at my house I run the fan an extra 2min after the condenser shuts off. VERY High Humidity here near the coast; Air Handler is in a closet in the garage and will sweat most days - letting the fan run for a couple of extra minutes got rid of the droplets of condensation on the outside of the air handler....makes use of the last bit of heat removal from the cold refrigerant in the coil too.

@HVACRSurvival 4 жыл бұрын

Good advice Mike, thanks for watching and commenting.

@joeshearer1247 4 жыл бұрын

On your heater job it would have had quite a bit of amperage on your ground wire. That's a widow maker if the grounds aren't tight and they burn then you come along.

@HVACRSurvival 4 жыл бұрын

You are correct, I don't usually check my ground wire often but I will remember that for next time. I usually check ground when the building is having electrical issues.

@gene-khvacr 4 жыл бұрын

Good tip Joe usually dont check g

@RayRay-nb7tn 4 жыл бұрын

Those strips are sometimes tricky cuz you look at it one day the next its broke. If you look at the tip of the bar of the one that was welded, it looks to be burned so it was the smell he was smelling. Lucky the ac still cooled on not so hot days. I have seen them not cool at all when well over charged. Great video miss seeing the show.

@HVACRSurvival 4 жыл бұрын

This was from over the winter. What threw me was the fact that my amp draw was normal on all elements. Then low and behold this was the issue. Thanks for taking the time to watch and comment!

@Ted_E_Bear 4 жыл бұрын

Great find on both videos! You’re the man !! Keep up the great work !!!

@HVACRSurvival 4 жыл бұрын

Thanks Bear! I appreciate the view!

@hozerhvac4406 4 жыл бұрын

Another solid video Rick. Smooth editing and to the point !!!

@HVACRSurvival 4 жыл бұрын

I appreciate your feedback Hozer👍👍. Thank you!

@chicoabdallah3944 4 жыл бұрын

Love all your videos doing excellent job keep it up .

@Teegogetta 4 жыл бұрын

Thumbs up from Detroit 👍👍👍

@HVACRSurvival 4 жыл бұрын

Cool Tyler👍👍I'm just about 2 hours south of you in Ohio.

@Teegogetta 4 жыл бұрын

@@HVACRSurvival Ohio thats terrible 😂😂😂 its all good I got family from Akron

@HVACRSurvival 4 жыл бұрын

I'm South of you off i75

@Teegogetta 4 жыл бұрын

@@HVACRSurvival lol oh sorry I went blind when I saw Ohio 😂😂😂

@HVACRSurvival 4 жыл бұрын

It's ok, we will blame it on the schools 🤣🤣 OH...IO

@SeanBaker 4 жыл бұрын

When I read a month or so ago that lowering the fan speed helped dehumidification, I sure did switch to low fan speed! Med high and high seem the same and med low and low seem the same. I also have downflow with in slab ducts. I used to always run the fan speed on high for AC. Carrier 3 ton condenser. ADP 3 ton coil with TXV. I believe my furnace is 4 ton.

@HVACRSurvival 4 жыл бұрын

Sometimes it's more noticeable when you have a ECM motor vs a PSC motor. Check your temperature drop across your evaporator to see if it's inline. I like 15-20* drop. (That all can change depending on your humidity) levels)

@SeanBaker 4 жыл бұрын

@@HVACRSurvival After doing it, my delta T increased an entire degree. I am too pleased, because it gets very humid around here.

@SeanBaker 4 жыл бұрын

9:52 PM 80 degrees outside. Return plenum air to Coil air delta is 24.5 Coil air to register air delta T is 17.4 I have some heat gain in the slab ducts, but I gotta take what I can get. I'm happy for now.

@HVACRSurvival 4 жыл бұрын

Sounds like it's going well. The heat gain in the slab seams high but I haven't spent a lot of time testing slab ducts for gain. Around Ohio we don't have any gain but I'm sure loss is more noticeable in our heating months.

@janwerner6882 4 жыл бұрын

i have a 20 year old 10 seer york with cap tubes that is proving to be extremely inefficient during these extreme hot months down here in Florida..it was working perfectly fine 3 months ago..hopefully i can convince my landlord to upgrade his unit

@FrostBlueFire 4 жыл бұрын

Make sure he doesn't go with another York, talk about garbage.

@BlazeFox89 4 жыл бұрын

I wonder if a residual current breaker would have prevented that heater strip from burning up so bad or even going unnoticed for longer than a day or so after it broke, they will trip when either hot or neutral goes to earth.

@HVACRSurvival 4 жыл бұрын

The amp draw was 20-21 amps per element, so it would not and did not trip the breaker. Usually the electric furnace will have 60amp or 30amp breakers feeding it. It made the smell once and did not do it again. It likely made the smell during the failure and then stopped. We came out the same day or the next day after it made the smell.

@roqueherrera8471 Жыл бұрын

DUUUUDE haven’t seen your videos in a while been busy bee making honey. 😁

@HVACRSurvival Жыл бұрын

Where you been 😲😆

@donnierobertson3088 4 жыл бұрын

Nice job and video

@HVACRSurvival 4 жыл бұрын

Thanks Donnie!! Glade you liked it👍👍

@prettycureforever7102 3 жыл бұрын

Common issue or system is undersized if it doesn't cool properly on hot days

@Eddy63 4 жыл бұрын

Good 1 Slick Rick ...

@HVACRSurvival 4 жыл бұрын

😁🤜🤛👍👍

@deanjones3817 2 ай бұрын

Nice video!!! Im just wondering why do your job link app look siffernt than mines...

@HVACRSurvival 2 ай бұрын

I’m not sure 🤷‍♂️

@BetoMota_ 4 жыл бұрын

HVACR Survival = supertech

@HVACRSurvival 4 жыл бұрын

Not hardly. Just spreading my 2 or 3 nuggets of information to help the new guys. Thanks for checking it out! I appreciate the feedback!

@OnePointLander Жыл бұрын

Has Bill Russell added new photos ?

@HVACRSurvival Жыл бұрын

🤷

@trep53 3 жыл бұрын

Do any of your homeowner customers have service contracts with you for spring and fall inspections. I live in NE Ohio and contract with a local company they have kept my HVAC system going smoothly for 22 yrs.

@HVACRSurvival 3 жыл бұрын

We do, but I'm in north western Ohio. It's a good thing to have done.

@trep53 3 жыл бұрын

@@HVACRSurvival yes I’m pleased with the service company I’m using and I don’t worry about my system at all. What smart/programmable T-stat would you recommend?

@HVACRSurvival 3 жыл бұрын

What type of equipment do you have. Brand, electric, gas, heat pump, boiler?

@trep53 3 жыл бұрын

@@HVACRSurvival sorry for the late reply, I was in Columbus all day. I have a Rheem 80% 75k btu updraft furnace and a Rheem 2.5 ton 13 SEER R410A AC unit.

@HVACRSurvival 3 жыл бұрын

@@trep53 let me do some research and I'll get back with you. I hear good things about the ecobee, I have had good luck with the high end Honeywell's, mainly the red link wireless system with duct sensors.

@anthonyrodriguez243 4 жыл бұрын

Awesome video

@HVACRSurvival 4 жыл бұрын

Thanks Anthony I appreciate you watching 👍👍

@FrostBlueFire 4 жыл бұрын

I never trust what the last tech did (unless I know how good they are) I always start from zero when I come across a unit. The only time I'll believe the history is when I see that solid techs have worked on the equipment. I worked for a company and we had over 20 techs, most were good. Some lied a lot. Great vid tho

@dandaman2226 4 жыл бұрын

Solid advice. I do my own diagnostic too unless I personally know the previous tech and his abilities

@HVACRSurvival 4 жыл бұрын

I feel ya! I'm the same way!

@throttlebottle5906 4 жыл бұрын

that's weird the whole element all sagged and bunched up like that, I'd guess the other two have been changed or a relay stuck on at some point, cooking until it broke off. hmm

@goldhammer561 4 жыл бұрын

Great video

@HVACRSurvival 4 жыл бұрын

Thanks Eric 👍👍I appreciate the view n feedback!

@HVACRSurvival 4 жыл бұрын

Thanks Eric 👍👍

@grindstone5368 4 жыл бұрын

Is that a normal temp split for that system? Great video btw

@HVACRSurvival 4 жыл бұрын

Not really, but I could only go one more speed slower. I like to see a 16-18 delete T. normally

@sterlingarcher46 4 жыл бұрын

About the bonus footage : I don't quite get how come it didn't trip the RCD ? Or maybe they don't have one ?

@HVACRSurvival 4 жыл бұрын

Because the amperage was 20 amps to ground. The electrical path to ground or nutrual was making a 120v circuit instead of a 230v circuit. It would be the same as wiring it for half the voltage. If the element would have broken and shorted let's say a couple inches from the powered side, it might have tripped because the resistance would have been much lower and would have resulted in higher amperage.

@sterlingarcher46 4 жыл бұрын

@@HVACRSurvival yeah but over here we have RCDs that trip if you have leakage to the ground overs 30mA for residential equipments , that's why I don't get how you can have 20A leakage to ground without tripping the RCD . I'm scratching my head right now 😓

@HVACRSurvival 4 жыл бұрын

@@sterlingarcher46 that sounds like a arch fault breaker, last time I checked a few years ago we were only required to have those in the bedrooms.

@joehead1294 4 жыл бұрын

RCD in the UK? Ring circuit comes to mind>

@mrfrenzy. 2 жыл бұрын

The americans call it a GFCI and they have not been used very much until now. with the new 2023 NEC regulations residential air conditioners will require GFCI breakers. Over in Europe most houses already has RCD/GFCI on the whole electrical panel.

@Guyhakverdi 4 жыл бұрын

Hey man do you think the equipment might be mismatched ? or undersized for the house ? What do you think the CFM/TON on this system ?

@HVACRSurvival 4 жыл бұрын

No I don't, I did not go into details of the home or the installation but its working great now from what I was told by the homeowner.

@prettycureforever7102 3 жыл бұрын

Man things undersized for sure if it doesn't cool on very hot days

@harrydickson4575 4 жыл бұрын

👍👍👍

@ralphgiampietro85 4 жыл бұрын

Good vid.Question that heater package was that on the same unit with the high unusual pressures? The reason why I ask i have had the same issues that you were seeing burned grounded heating elements which also welded close the relay contacts thereby keeping it energized causing erratic pressures and a bad split

@HVACRSurvival 4 жыл бұрын

No it wasn't, that was from a call earlier this winter that was not long enough for its own video. The furnace in the first part was a gas furnace.

@jrsmyth9761 4 жыл бұрын

Seems you are arbitrarily changing fan speeds without regards to unit information. All the work you did before changing fan speed could be worthless. If your airflow is wrong, your charge would be, too.

@HVACRSurvival 4 жыл бұрын

The air handler is capable of 3 tons on high, most Carrier branded products are raited to run as low as 325cfm per ton. The evaporator air flow had little no effect on the TXV, and same with the subcooling. The adjustments still did not have the effect on temperature drop I was looking for. I would have rather seen 16-19 delta t. As I mentioned I made sure the condenser was clean. What would you have done differently?

@ishalljr 4 жыл бұрын

@@HVACRSurvival did you check the split in the attic? It may be higher than you think. That's my only issue with the probes

@HVACRSurvival 4 жыл бұрын

I checked it downstairs 😏 .(A little detail I purposely left out) I work with the person who's house this is. They are much more comfortable and said it's been working great 👍👍 and love that it's quite now.

@ishalljr 4 жыл бұрын

@@HVACRSurvival more then likely it was fine after the first adjustment. I suggest checking at the unit if the split is low,it could be a collaped/partially blocked duct you're checking. If I'm not mistaken they only had one return as well. That could be aiding in the discomfort.

@HVACRSurvival 4 жыл бұрын

@Ivan Hall the system was installed a year earlier. The ducts were open and stretched properly. There's details I can't put in the video if your catching what I'm hinting at.