Troubleshooting Freezer Defrost Issues. Try This First!
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- čas přidán 29. 07. 2023
- Troubleshooting a walk-in freezer that was frozen up earlier in the week but needed more work can be time consuming off you don't know the history of the problems, unfortunately it went down over the weekend while I was on call. I had the displeasure of defrosting the system and the opportunity of returning a week later to do it again. I was able to locate what was causing the ice. I explain how the hot gas defrost system works, how to pump down a refrigeration system on the rack and how to clean the txv screens. Obviously there's times where you will have to pull the vacuum on the circuit but this was a time where speed and resealing the system while cleaning the screen worked in my favor to avoid that.
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#hvacrsurvival #hvaclife #hvacservice #hvacr #refrigeration #troubleshooting - Zábava
Nice trick checking the solenoid valve with the clamp
Love the trick with the clamp to check solenoids 👍
Those grocery racks are amazing
I really enjoy watching your channel. I used to watch that HVAC/R Videos guy but all he dies is braze things and talk down to you. And then all his endless whining at the end of his videos. When I watch your videos there's an interesting variety of equipment that you work on, you explain how the systems work, and you show more than just brazing. Plus, I'm getting a real education watching you. I also love your sarcastic humor... it's great.
Keep up the good work and I'll keep watching.
Signed, a subscriber.
It definitely takes a special person to be able to understand my sense of humor, some people get offended, pissed off, think I'm bitching and all kinds of other things but it's just me trying to be funny making the best of the situation I can.
Wow you just taught me something. I didn’t know you could check a solenoid with amps on your meter.
Was using it today
Keep the videos coming.
👍👍
I used to work in Grocery and we cleaned our cases OFTEN! Seeing this sure looks bad vs ours! LOL. I did do the basic maint on the rack, and always loved the sounds of all the compressors running.
I wish someone would make one of those 10 hour sleep videos of a rack refrigeration room...hint hint
😂🤣👍👍. Loop it
Yup, too complicated for me. Good job Rick!
🙏🤜🤛👍👍
Nice work, used to work on meat market equipment when I first started in the trade. Can’t say I miss it but they did pay well. 👍
The supermarket stuff is relatively newer to me compared to the years I've been doing HVAC in general. I got bored doing the residential light commercial stuff but I still do it everyday.
Good Call . Thanks for your insight!
You really do get just about everything imagined to work on. And you fix them all!
It's a challenge at times for sure.
You need more subscribers dude! This type of stuff you work on is beyond my expertise, I mainly work on residential and light commercial stuff. Great work man keep up the good work ethics and keep educating the green guys going into this field! Phenomenal work bro!
Thanks so much Tom!
Excellent fix 👍
Thanks for the support!
Interesting how those racks operate especially with the different solenoids and control panel. Every time I shop at my store some particular case has a water sock on the floor. Thanks for bringing us along.
Thanks for watching!
Excellent video sir! Those rack systems are definitely a different beast. Well done!
🤜🤛👍👍
No bubbles, no troubles. 👍
Awesome job Rick.
Good work. Those controllers have gotten way more complicated since I did refrigeration. Thanks for a great video.
I really like how you explain everything. 🤙💯
Thank you! 🙏
Awesome video you sure are very intelligent stay cool out there
You're too kind 🙏, it has a long, slow journey learning learning how the controllers work. I'm still learning everytime I work on them.
Doing a txv on a walk in wine cooler tomorrow. Going to try something new, and install the KE2 air + valve retrofit kit. Got high hopes. Although, everything KE2 makes is pretty legit. Bet it works out very well.
Awesome, good luck 🤞👍👍
Just made the decision to get into Supermarket work.
Awesome! I think you’ll learn a lot 👍👍
Good job breaking it down
Great job Rick, You like dealing with that complicated stuff.
I think it's rewarding but can be difficult.
drill a hole in a tennis ball a little smaller then your drill. it fits perfectly over a drain for blowing out
That's a good idea👍👍. Thanks!
As always great damn video. Appreciate you sharing with us.
Thanks for the feedback 🤜🤛👍👍.
Great video man! 👍
Thank you sir!
Nice job, Rick!
Damn buddy.....at the end you looked wore out.....i can totally understand that....im feeling it too. Been a long summer so far....i have the most OT hours in July....looking forward to fall when it'll slow down a bit and i can catch my breath so to speak
I was tired. I get home and I don't hardly want to do much. 👍👍
@@HVACRSurvival i can totally understand that...2 weeks ago was my on call....had 53 hours of OT that week...i was tired the whole next week...its part of what we signed up for....but its never the fun part
Great Job Rick. Gotta love those stopped up drains.
Thanks man!
So what was the main reason for ice buildup on that freezer room, was it due to starving from blocked screen, or improper defrost settings?
PS: I use wet/dry vac to suck out blocked cases, works so much better than nitrogen 😊
I'll try both but on a drain like that one I ended up having to hit it with about a thousand pounds plus a pressure. I don't recommend it but I don't use a regulator when I blow out lines. Defrost had been working for quite a while but I did raise it to 20 minutes and yes I believe the screen was the issue starving the TXV causing it to frost up more than normal. Plus the box never hit temperature as well as it could so it never got a off cycle.
@@HVACRSurvival thanks for the clarification!
Put an alarm on those freezer doors. I fight the same problem. They will ignore them. I use the Danfoss magnetic tool app on my phone when I dont have my meter with me to check solenoid coils.
needs a cheap loud buzzer/beeper. but then they'd probably flee the building thinking it was a fire alarm. 🤣🤣
Love your work man.
we have pressure switches hooked up to condeser fans so in the winter we can reduce the condenser capacity as needed which is essentialy the same thing here with the solenoid valve i imagine.
06:00 is this only done for lowering the pressure drop in the condenser because it will affect the txv or are there any other reasons at all?
By closing it it'll reduce the size of the condenser which will raise your pressure keeping it more in line with the traditional pressures you would see when operating normally. Theoretically they had five fans that can cut out, and you can shut each one of those down but you're only going to be able to shut so many down, once that doesn't work then you cut the coil in half and you'll start turning fans back on which then allows you to run in even colder outside temperatures
Really like the old grocery store calls. E2 is a great controller. Were moving away from them unfortunately so I have to learn the E3s. I swear this industry gets more annoying every year with all the new shit they come out with. Theres not enough time to get training on it and you're just forced to learn on the fly with little to no manufacturer support. Just ranting...
That actually was a E3 Head End. The interface is goofy, I hate the Danfoss controller away more, we picked up a couple new stores with them and they suck. I know what you mean learning on the fly is not my preferred way either👍👍
👍👍👍
Could u help me, my AC made a hissing and bubbling sound but it only occurred once and we hadn’t turned it on since last August and serviced last August , Any idea?
Without knowing more, I would guess you might have a refrigerant leak?
Is that chiefs? Lol! Just joking. Glad I don't mess with stuff like this
❄️👍💪🇺🇲
If you need to clean the TXV screens you have a much bigger problem
Yep but it's not uncommon and it didn't just happen
@@HVACRSurvival It is uncommon, there shouldn't be trash in the system. That system needs to be flushed and new filters. Semi herms have replaceable filters for a reason. That thing is on the brink of catastrophic failure
This rack system stuff is just insane to me 😂 Y’all got my respect 🫡
Thanks Guy 🤜🤛👍👍
I hate the valves that have the screen in the inlet with the end sweat on 😂😂😂 those are the WORST