This was a service call on too much frost on the walls and ceiling of the walk in freezer. I found that the door was sticking open, but I was able to also test the Evaporator limit switches while I was there.
For editing my videos I use Adobe Premiere Elements https://www.adobe.com/products/premie...
For Optimizing my videos I use Tube Buddy
https://www.tubebuddy.com/HVACRVIDEOS
Please consider subscribing to my channel and turning on the notification bell by clicking this link https://goo.gl/H4Nvob
Social Media
Facebook https://www.facebook.com/HVACR-Videos...
Instagram https://www.instagram.com/hvacrvideos/
For any inquiries please contact me at crstephens83 @charter.net
For editing my videos I use Adobe Premiere Elements https://www.adobe.com/products/premie...
For Optimizing my videos I use Tube Buddy
https://www.tubebuddy.com/HVACRVIDEOS
Please consider subscribing to my channel and turning on the notification bell by clicking this link https://goo.gl/H4Nvob
Social Media
Facebook https://www.facebook.com/HVACR-Videos...
Instagram https://www.instagram.com/hvacrvideos/
For any inquiries please contact me at crstephens83 @charter.net
Okay, so the complaint is that they've got too much ice on the ceiling, it's kind of hard to see, but it's there and they've got frost all over everything. Before I even look at the coil, I already noticed that, and I'm always gon na look at the door issue, and we just put new hinges on this: the thresholds falling preventing the door from Shetty, so the first thing we're gon na do is slap this unit Into defrost got an interesting equipment location up here in a parking garage. This customer is located in a giant shopping mall. You guys may recognize this because I've done a video on this unit before I'm gon na slap it in a deep Frost make sure it holds repair the door while it's defrosting and then test the fan, delay and defrost termination switches at the exact same time.
So I just heard it so I just heard it pop out a defrost, and this is what I'm checking, and this is exactly what we want. We want these fans to stay off when it first comes out of defrost until the fan delay senses that the coil is pulled enough, usually 20 degrees. So I also in testing the defrost termination switch to make sure it's working correctly and it is. I set the defrost for 45 minutes and it's only been about 10 minutes, so it's come out of defrost by high temperature at the coil and then now that it's back in the freeze mode, the fans haven't turned on yet until the coil gets low enough.
So this is perfect. This particular unit happens to use a three wire. Defrost termination fan delay and I am ensuring right now that it is working correctly. So this is perfect operation.
Whenever you see ice on the ceiling, it's usually either a door being left, open and moisture, infiltrating or a defrost termination fan delay, not working correctly. What you'll see is is right. When it comes out of defrost, the fans will immediately turn on and it'll blow all the moisture from the warm heaters right off the coil and accumulate on the ceiling, but I have just tested that and ensured that that is not our problem. I know our problem is simply just the door.
Not closing really good indication is, is the ice right on the door happen to be where the door sweep was hanging down, so it was binding up and not letting the door shut completely. So I'm currently chipping the ice off at the door. Re securing that threshold temporarily until I can come out and replace it.
Great video
So much to learn about these systems
Nice video and great info! I also check the heat trace on the drain line and make sure water isn’t backing up and refreezing in the pan
Have you checkend the possistion of the defrost sensor?
people working in kitchen often does not care if the door stays open too long, thats common knowledge.
leaking door gasket, yeah looked like it did on the frame corner.
Is there a fan stop button with delay for customer to use while working in the freezer.
from my expirience its lacking work from customer and gasket Are you in Orleans ?
I always see the kitchen works prop the door open for long periods while stocking it,I tell them they cant do that because its adding too much moisture,they just give me a blank stare!!!
I don't do any refrigeration, but would really like to learn. There's a lot to learn out there. Some people tell me that I'm not going to learn everything, but I'm assure try.
Another good video, thanks!
Hey do you have a Facebook and messenger app? I’d like to speak to you for a bit. I’m still trying to grasp the idea of defrost and the sequence of operation it takes. If we can discuss this together I’d appreciate it
I’ve seen freezers that are not sized correct for the amount of events per hour for the freezer.
Event= trips into freezer. Causing ice and frost. Usually need a bigger evap coil in high traffic freezers. Yours looks like door issue for sure. Keep the videos coming brother👍👍
Depositing good knowledge!! Yeah! ~ Many returns with interest!!
About once a week I would find the commissary walk in freezer unlatched and slightly afar with the typical "snow" everywhere. Would raise a fuss with the night time supervisor but they swore they never entered the commissary after hours. Didn't believe them until one night doing inventory late the I was alone and the door just popped open…. Poltergeists?… no, the unit was in defrost and the door latch did not have a lot of tension on it. I adjusted the door latch, but think I might need to take a closer look at the dusty crusty vent thing that is up near the ceiling.
Nice troubleshooting.
And thanks always for the great 'real life' troubleshooting tips! Service area Kanata??
Killer good stuff! Thanks! And timely is why: hotel w-i freezer, can't get the staff to keep the the door shut (creative door stops!) during their shifts and nobody can figure out where the extra ice, etc. is coming from!!….suggested/installed a couple years back a manual latch after removing the spring-loaded one and the Kason closer…did that help? Ha, next!! AND, recently found the Kline HVACR type screwdriver = what a great service idea/ tool!