Today's service fall is a complaint of a walk-in freezer with Frost. It doesn't look too bad to me, but there's definitely something going on they're saying it was like all over the ceiling. I'ma see some droplets definitely and then I already saw that the doors not shutting properly and you can tell that there's a door issue because look at where the ice and frost is all around the door. That's because the door is not shutting all the way.

So you can see that you know around the door. The shelves have frost build-up, but if you go over here, it's not so bad they're thinking that clocks is getting too cold. We're going to go through that and evaluate everything right now, but we definitely know we need some we're gon na evaluate the entire system. Look at all that ice.

We have in there. I just kind of broke it up a little bit, but this is why we evaluate everything, even though I'm here just for you know more than likely just the door, not shutting we're looking at everything, and we found a bigger problem that would have been blamed on Me or my company had we not fully diagnosed this system, so it's imperative that you always look at everything, so we're gon na figure out why our drain pan looks to be full of ice. We're gon na start pulling some fan guards and evaluating how bad it is and then maybe we'll throw the unit into a defrost and check the heaters. So this is interesting.

The ice is only on one side of the coil. You notice it's not here. It's not here, so I've got to evaluate this and figure out exactly what's going on. No, I I took this drill doesn't seem like it's on the level the coil is, you know, leaning to one side.

Maybe that could cause accumulation on this side, but I don't think that's the case. It's always possible to that. Someone never fully defrosted the Clos, but we're the only company that works on this and we haven't had an ice up problem recently. So it's interesting so we're gon na keep on going on my difficulties.

I saw defrosted and go from there, so I removed what ice. I could by hand just to eliminate some of this stuff just broke right off with my hand, but you never ever want to hit or chip at anything because there's too much stuff. So that's all I can do so now. I'm gon na use the hot water and slowly defrost it nice and slow without getting any water dripping out of the coil.

It's nice and slow. If I was defrost in the coil, I'd take off the motors, but it's just a little bit in the drain. Pan stuff, just some hot water, a nice and slow, letting the drain get all the way over into here. Then we'll put it back together and finish diagnosing so this coils unlevel, so I've got water on this side and I'm gon na slowly move over and the water gets lower and lower and lower over.

In that side, I barely have any water in the side of the drain pan right there, so you might need to do some work to get this thing leveled out it's draining now. So that's a plus, but yeah we're definitely unlevel. So probably what we need to do this may have been any existing issue from day one as we're gon na need to drop that side of the coil down a little bit and level it out. I could probably do that today, we'll see maybe put some washers under the top or something we'll get a level in here and check it better.

That way, I was actually able to correct it just by adjusting the drain pan. What I think is that they've been stacking boxes and pushing up on that, because I just bowed that down a little bit and then loosen all the screws and pushed up each corner as far as it would go. It only went a little bit, but now I've got some pretty even water flow. It's good.

I learned to seek as well as steam, but it's draining, but this side right here wasn't having any water in the beginning, but it's draining all out now keep watching it see what happens. Okay, so our systems run in a clear sight: glass, no problem. There. Condenser fan motors are running.

The box is still coming down in temperature. I don't see a problem with the refrigeration system right now, everything's, looking, ok, we are gon na check the defrost right now. Now that the box is nice and cold, I will tell you that when I turn the breaker back on, I hadn't come up here yet, and the evaporator fan motors instantly turned on which they probably shouldn't have because I got that evaporator coil, nice and warm because I ended up just spraying the whole coil just to get all the any frost that was on it off, so the limit switch should not have turned those fans on that quick. It should have been a delay on the fans and I'll explain that in the recap, but I definitely think we're going to have to do some limit switch, replace mountainous on top of a door closure, but let's go ahead and check the defrost now and check the Rest of the system - ok, so we're going to get in here and test our heaters.

We've got four heater wires going to the h1 terminal. It's going to test each one. We need to make sure we have amperage on each one so that one has 1.65 1.63. Three point: three: three point: three.

Okay, so we've got the bottom of the coil here the drain pan heater and then we have two in the coil, so yeah we're looking good. I don't see a problem there. Everything else is looking good. My limit switches, like I've, mentioned - I don't like how the fans starting right up when I turned it on so we're gon na quote, to replace the limits, which is also everything else, is working good in order to come up with a custom, gasket you're gon na Measure the total width, so you see this is the bottom side of the gas get aside, and this is the side over here we measure the total width one inch you can write about one inch, then you also want to measure the total debt looks like about Five eighths and then the overall dimensions, and you want to pay attention to how it mounts: that's a dart style, so it pushes into that plastic card door.

Sweeps missin place the door sweet also, so I'm looking at their digital display. That was disconnected also because I'm looking at the big picture, you see all that moisture in there. That's why this display is going bad. The box is not sealed properly in a lot of times, even if you seal it with silicone and stuff it'll still get intrusion from moisture.

Just because of how bad the insulation is in the walls, even on this top one, you see how they've got a lot of rust and stuff. So if they approved me to replace this control, which has been disconnected, will mount it exterior to the unit put it in a different spot. So that way we don't run into this problems, but this is also their light switch too. So here's my solution, we're going to go ahead and install it's made by dick sille.

It's a door alarm kit! It's got temperature, it's all enclosed, we're gon na put it exposed to eliminate the problem with the moisture intruding on the control. That's existing temperature sensor and I haven't decided yet if I'm going to use the magnetic door switch, I like the idea of a magnetic door switch, but I just worry about the nuisance. Calls if something happens, and then they make me this location is an hour and a half from my shop so we'll see - I haven't decided on this yet, but replacing the door gasket and what I like to do is soak these in hot water to make them Pliable and try to get them to set in there, because I tried putting it in without soaking it in the dart, the little plastic dart right. There was having a hard time so we're gon na try that and if that doesn't work, I have some other methods.

So yeah this one's being difficult, I get the corners in fine, but in the middle it won't go and actually what it is. If you look at the gap, it gets bigger on the bottom and gets the mole over here. So I have another trick. So if you look at the bottom, one of these gaskets there's a double sided, dart and oftentimes on these really old doors.

I find it easier to cut off the inside of that Dart since right there. This is what we want. The fan should not turn on see the limit switches are working now. That's why we replaced it because the fans were turning on too fast last time they were turning on right away and that's not what we want.

So this is good, so the clothes got to get to in the 20s before the fans will turn on now so around the sensor wire up and around. So it's not getting the discharge here from the coil. We silicone the hole. The operators running.

We've got a thermostat up there now, so it's not a mechanical thermostat anymore and we change the limit switches with a new door. Gasket door closure the alarm modules right here. It's got a magnetic door, switch, it's got a light, switch in it and we put a new door sweep on the bottom of the door. We also have a problem with the door shutting and it was because this hinge wasn't shimmed out.

The top hinge was, but the bottom wasn't so we shimmed it out and everything's working good. Now it has an audible alarm, so little scream at you might be annoying. But I set the parameters so basically that all audible alarms gon na go off if the doors left open for more than 20 minutes and everything else is looking down. We sealed on the inside right here we seal this up with silicone.

So that way, the air is not gon na come in from in here yeah okay. So this was a service call on a walk-in freezer that wasn't working properly. The complaint was that the customer thought it was getting way too cold because there was frost all on the inside of the box. Like I said in the beginning of the video when I got there, I mean there was a little bit, but it wasn't nothing crazy but again went through everything.

Okay and I found multiple problems. Okay, to address the frost on the inside of the box, they actually found a whole bunch of problems, but the main problem was that the door was not shutting properly the door. Closure was bad, okay, the door gasket wasn't sealing properly and the door sweep on the bottom of the door. Was you know partially missing, then.

On top of that, I found that the evaporator coil, which has a fan, delay, switch or a limit switch inside of it limits which wasn't working properly. So when you would initiate a defrost when it would come out of defrost, those evaporator fans would start immediately and that's not correct. You know those evaporator fan motors should have a delay that usually doesn't turn them on until the evaporator coil gets to about 20 degrees or so okay. So we went ahead and also found that the thermostat for the box wasn't working properly, in that, when I would set it for a certain temperature, then it would overshoot, and it was just very erratic, no matter where I said it, it was just kind of had A mind of its own and it was an older original mechanical thermostat.

So we went ahead and got the approval to do all the work and we came back in and put a new door gasket new door closure, new door, sweep new temperature controller, new limit switches, and then we also installed that new digital display on the outside of The box with the door alarm on it and the high and low temperature alarms, okay, the customer was extremely satisfied. It's exactly what they wanted. I they appreciated the fact that i moved that door alarm up higher for a couple reasons number one, because i had to mount it exposed on the outside of the box because of the moisture intrusion in the walls. I was afraid that you know someone walking by that corner was gon na take out that box, okay, so by moving it higher, it makes it a little bit easier, and it's also you know I had to think about it.

It's not too high, okay, because they have some shorter. Ladies that work in that restaurant they can still reach the light switch on that thing, but one of the cool things about that dick cyl. You know door alarm kit. Is that because I went ahead and left the magnetic door switch on there, the when you open that door and the magnet opens it automatically turns the lights on, and then it has a timer feature in it that if the lights are on for so much time, Then it turns them back off and you also have the ability to turn the lights on and off by pushing the button to okay.

So that's pretty much it guys. Hopefully you guys got something from this right now. You should see some other channels that I really recommend you guys check out popping up, give those guys a shot, and you know I really appreciate your guys's feedback, so you guys got questions or comments. Suggestions send me an email, okay, HVAC our videos at gmail.com, or just throw a comment down on the bottom of this video.

Alright appreciate it guys and hopefully we'll see you guys on the next one: okay.