This thing's on crack right now, yeah, there's some funky stuff going on there. What the heck is going on here. This video is brought to you by sportlin quality, integrity and tradition. We've got a sunday morning, overtime service call it's about 7am.

On sunday, um they're saying the walk-in freezer is not working at all, looks like we have a display, and i believe it says scr like it's in service mode. That's interesting, um! I need to get a ladder, so i can get up into there and figure that out you have to put it into service mode. That's weird! I thought you had to put that in there. I've never seen this before i'll have to get out the manual.

I hit clear, that's weird huh! That's really bizarre! I've never seen it put itself into service mode huh. I came over to the breaker panel and shut off the breaker, which is power for that guy, because i did find a little bit of ice in there. Um we're gon na go ahead and get that ice defrosted, but i have no idea how it got into service mode on its own. I can't see the customer opening it up and doing it, but i don't know we'll see we're gon na get that ice.

Melted. First, so i don't know the story here. This is a weird one. Let me give you guys some context.

It's sunday morning, like i said it's actually around 8 a.m and the customer called me last night, as i was going to bed about 9 30 at night, they said my walking freezer is not working and uh started, asking them some questions and like we reset all The breakers and so then i was like okay, which breaker, because i know this location very well. This was like which breaker did you reset? Is it a three pole la dee da and in the conversation we were having, he said, yeah they've been resetting it for the last two days and i go what or what one he said he they've been resetting that since friday and it was saturday night and I go what i go, so your walking freezer's been down since friday and he said well at a minimum. I think it might have been down longer and i go really and he goes yeah and i go okay. Well, what time do you guys leave the restaurant and he goes? I leave it like midnight he's like, but you guys can stay here overnight right and i was like you have to stay with me and he's like really yeah and he goes okay.

He goes well. How long until you can be here - and i said dude i said i'm not coming out for a walk in freezer - that's been down since friday. I said i'll see you sunday morning. I said just keep the door shut.

It's not gon na be any different. Six hours from now and he's like okay, so you know i was a little agitated and i've never told a customer no like that, but i'm just like at my wit's end with these silly service calls like that where they tell you, they give you too much Information he'd been better off telling me that it's just not working, you know, but since he told me that he'd been down since friday, i was like no i'm not gon na come out there and be there all night trying to figure this out so uh. So here i am now and i walked up and it said scr which i believe is the service mode, but i don't. As far as i know, i don't know how it can do that by itself.

That's interesting, but regardless turned off power. We're gon na get this little bit of ice melted. I don't know it's over here too. I don't know if this is just residual.

Who knows so we're gon na get this melted and then uh we'll go from there. The wand really comes in handy. If the water was behind the motor, then i would take the motor off, but i also got a pan down here to catch any residual drips because there is a little bit of ice hanging off the back. So just get it all defrosted and then go from there.

All right got all the ice melted, nothing back in there, just a rat's nest of wires and sensors over here um, i'm thinking right now. You know you always want to investigate electrical connections. Looking for loose wires and stuff because uh weird issues can happen with the circuit boards, if you have loose wires, um bad connection, things like that, so you always want to give a tug on these guys make sure they're loose. I just released a video where uh i had a tripped breaker and the compressor terminal was loose, so you always want to check wire connections.

Make sure that everything's good kind of good look at that that just straight pulled out of there like that, that's not good! Look at how loose it is up on that terminal too. That's really loose pulls right off and it pulled out of there. So we're gon na make a new connection right there, but that is just one side of power to the heaters. That shouldn't be anything else because line voltage comes in on h2 and this pulled out of h1.

So i'm confused, though, what are they doing here? So you've got one side going to j, because this only gets 208 single phase and then it does all the math itself with the three four x all that crap. So one side goes into j and one side goes into h: two huh, that's interesting, yeah they're doing some funky stuff here i'll confirm! That's correct! I mean it's going to be correct, but we need to fix that terminal. First, so i'll get a piece of wire and we'll make a a new jumper for that huh. This is interesting.

I mean that neutral b or that that wire being loose. It's not the common, it's one side of the heaters, but it's not the common but um anyways. It's uh. I don't know if that would affect.

I mean i guess it could have an effect on the circuit board, but i don't think so. Who knows it's hard to say all right? Well, we got ta power, this guy back up and then uh finish troubleshooting, i'm currently rolling up my hoses and i find it really odd that it's going into defrost now i just turned it on. It's really bizarre. We'll have to look into that, i'm hoping we don't get a problem with the board, all right, something's, not right here, because it says defrost, but the fans are running.

This is a walk-in freezer, so we're gon na go through the programming and see if something's funky in the programming a through e air electric defrost air. That's not right, let's change it to electric enter. I think i it's been a while, since i've done this, i think that's how you do it refrigerant. I think that's right.

We'll have to go verify box, temp, negative. 10. Super heat, seven! That's right! It's a slave! No demand defrost! Yes, okay! That makes sense as to why it was in defrost, i'm not gon na change that defrost fail safe. I think 30 degrees.

No, that's that's defrost time. This is defrost termination, tim 60 degrees alarm. I think yeah. Those are alarm, features fahrenheit or celsius fahrenheit, it's uh! I think that's like where it shuts off the fan.

Let's check defrost again, that is bizarre. Okay, what the heck, but it still says it's in defrost and the fans are running yeah. We might have a problem here. Let's go to monitor, let's see what readings we get: 53 degrees, suction saturation, suction pressure, outdoor temp, defrost termination, ac, voltage, 25 volts set point yeah.

This is weird. I took it out of defrost the eev just opened up. I'm gon na try to force it back into defrost. Again, i think if you go two times i think wait.

I didn't do anything. Why is it pumping down? I didn't push anything and it pumped down this thing's on crack right now, yeah there's some funky stuff going on there. What the heck is going on here, okay, so now it's legit and defrost electric defrost and it shuts off the fans. What the heck is the dysfunction here.

That is really bizarre. I can tell that the heaters are on. I can actually hear them. We're gon na get a uh amp meter out, though, and test them all to make sure they're all running okay, so we're gon na test each heater make sure we get current on them.

We got ta. Do each one looks like there's four heaters. I think. Maybe one in maybe three heaters, it's kind of hard to do, one-handed, that's kind of low, that's right at one amp 1.0.

I think uh, there's one more one more to test this one right here. Okay, all the heaters are working, but what the heck is going on here, so there all right now we're gon na test if it actually stays in cooling mode. Now i don't want to play with any buttons i'm just going to let it naturally do its thing, because last time it went into pump down right, quick, all right it. It finished its drain sequence and now it went into cool and i'm testing power across the uh, the board right there from scr to common, because that's where we would put a service input to force it into service mode.

I was kind of curious if something was going on like it was losing voltage or something or now, though, we're looking for 26 volts across there huh all right, it went through its uh drain feature, which is a drip feature whatever, and then the coil turned back On we're in cooling mode, i'm not touching anything, and i just want to see what naturally happens to the system. Is it going to continue to run, or is it going to go into pump down again, so the unit's been running for about 15 minutes? It's down to 23 degrees in the box, but i'm really concerned about that circuit board because as long as the unit there's no there's no pump down switch between scr and c. So as long as the unit doesn't have that pump down switch, it should never go into service. Unless someone comes over here and double clicks, it and again, i can't remember my exact steps, but upon startup it went into its own pump down mode again.

It makes me concerned about what's going on in there um, but i'm going to let it keep running for a little bit longer, because i don't want to disturb anything, and i just want to see it. Do it again, so i'm gon na go sit down. I have the manual right here: i'm gon na read the manual while i'm waiting, um and then just see if we go into service mode or defrost again, so the condensing units running i'm just waiting, we're running a clear sight. Glass, i don't see the need to put on service gauges at this time, but we definitely need to talk to them about putting some new insulation up here.

Condenser is pretty clean, but yeah. This stuff is just it's still. It's not completely rotted but looks like birds. Have been picking at it, they like to do that so uh we'll talk to them about that, we're still just kind of watching and waiting.

I just want to see if it's going to shut down again, i really want to change the board, but it's sunday. So if i can get them through sunday and do it next week, that'd be great all right. So i'm going through monitor right now we're getting an a1 error, which is a high box temp, which is going to happen because it's high esp is expansion valve set point. That's how many steps it's open, sct, suction temperature, saying 10 degrees, suction set! That's the line! Temperature suction saturation temperature, negative four scp suction pressure, 30..

Okay, none of those work, i'm concerned because it went into a defrost and i believe, the only things that can put it into a defrost. If you have issues with the sensors or something i'm really thinking, we might have an issue with the board, but i want to give it some time i do have some other service calls. This morning, i'm gon na go ahead and put this into a manual defrost where it doesn't do uh adaptive defrost, so we're gon na change that so we're gon na go to program review. Let's see if i can get out of this clear and then we go to program review a through e uh, electric defrost, refrigerant 404 box, temp negative 10 super heat setting should be seven.

It's not a slave coil demand. Defrost is on yes, i'm gon na change that to no enter dfn is number of defrosts we're gon na change that to six defrost a day, because i don't know what they're doing here right now. We're gon na go dff fail safe time. 30 minutes.

That's fine! Defrost termination, temp 60 degrees. That's fine, dfs uh! It's an offset! I'm not worried about that. All right go ahead and clear out of that, then we're gon na hit program review again to make sure that my settings stuck demand. Defrost should be no correct.

How many defrosts per day six i went high because these guys leave the door open all the time. 30 minutes. Okay! So we're good on that! I'm going to put this unit back together, we're going to let the customer watch it throughout the day notice. How, when i first got here, was saying 35 degrees, and now it's saying 22, but it's dragging it's been at 22 for like a half an hour, that's because that's the true product temperature of everything, that's in the box right now, even though the air temp was Saying 35 40 degrees, the product temperature is only 22 and you can tell because it came down to 22 degrees really fast, and then it's been that way for a half hour or whatever forever so we're gon na put everything back together.

Tell them to keep an eye on it and we'll follow up with this one. You know i regularly work on a variety of equipment, it's hard for me to remember everything about every piece of equipment and the logic process you have to go through, but that's okay. I mean i have a general understanding of what's going on, so i can kind of fumble my way through things and be like okay yeah. That makes sense.

You know, and you guys kind of see that in this video you know i'm going through. What does that mean? What does that mean? Oh, no, you know that's you know again. I've told people so many times. I talk to myself when i'm working and that's how i i figure things out is: is that that vocal um conversation you heard was literally my brain working right.

I'm like talking. Oh wait. No, that's not right, you know, so i do talk to myself truly and um, but going through this okay. Inevitably you know in the end, what i think happened was.

I think that electrical connection that was loose was the cause of all these problems. Okay, i think we were having an intermittent problem. It the circuit board, just didn't like the the loose connection, and i think it just kind of made the circuit board go wacky. Okay, i don't think the customer was up in this equipment playing with settings or anything, but it's weird because you know it turned it from electric to air, defrost and other weird things now mind you.

This call happened in september of 2021. It is now april 16th of 2022. Okay, i've had this footage in my hard drive for a while and just haven't edited it down, but this has not given us any more problems since cross our fingers right uh. So i just think it was a loose electrical connection and that can just wreak havoc on these things.

Right, um, you know, there's i don't know you know exactly what happened, but i know that i corrected these problems and again that's sometimes how you have to go into these calls. Is you just do your best? You look at everything and you say: okay, i don't know what's going on here, the there's something funky in the logic of the board, but do i see anything else? Do i see any weird problems? You know? What's the voltage? Okay, i found a loose wire. Let's correct those things and then just monitor operations, you know, go through the programming, make sure everything's right, correct it, and then you know it's been several several months and we haven't had a problem again since okay now i did also address something. I'm not, you know, really big on telling customers no, but with this particular customer when they called me and they were like yeah.

We need you out here late at night, i'm like wait. You said this has been down since yesterday. Well, yeah, i'm not gon na. Come out there in the middle of the night and go through this equipment and play with it for something that you guys said has been down since the day before, like it's, not gon na, you know six hours because they called me late at night.

I was like six hours i'll come tomorrow morning. It's not going to make a difference. Hence you guys saw that when i got there the once i got the equipment running, you know within 20 minutes the product. You know the box temp was down to like 20 degrees.

Well, that just means that their product temperature was at 20 degrees, the entire time. Okay. So yes, i i appreciate that the customer wanted me out there in an emergency situation and, yes, they are the boss, but at the same time no i'm not gon na. You know come out there in the middle of the night to go play with your equipment that has been down for a very long time, because you guys, you know, didn't place.

The service calls that you needed to place as soon as possible and they were fine and everything has been good since but um, that's just how i go about things. Okay, you know if they'd have told me that the box is at 80 degrees yeah. Of course, you know we're gon na come out there, but even there there's still an argument to be made too. You know if they called me and said the box is at 80 degrees, and it's been like that for two days well, yeah, i'm probably not going to make that a priority in the middle of the night.

You know call me when it goes down. You know that shows on the flip side. These restaurants are really struggling. You know i.

I appreciate the fact that they don't have very good staff. You know a lot of them are struggling to find good kitchen staff and management and different things like that. So you know it's it's a fine line that we walk there, but at the same time, my health and my sanity is the most important thing and i can't bend over backwards um, for you know a service call that had been down since the day before you Know it's just like yeah, it can wait until the morning. You know.

So in that situation i was able to do that. We got him held off, we got it taken care of and again it's been months and months and we haven't had any other issues with it. So big picture kind of stuff always paying attention working through the call. Even if you don't understand the logic completely, just using common sense working through you know, let's check electrical connections.

Boom found a loose electrical connection. Okay, that could be part of the problem, but i didn't stop there. I kept going through the troubleshooting process found other issues. You know and just waited and just watched it come down to temperature.

So sometimes you just got to sit back and wait and just you know see if you have any other issues with it all right. I uh. I am not a perfect technician. I make mistakes.

All the time i want people to know that i'm real. I try to express that as much as possible. In my videos i am a real person. I do make mistakes, i'm human, i'm flawed, just like everybody else, um, i'm not some person that just posts.

These perfect videos that oh yeah, i know how to fix everything, because i don't okay, i am a real technician and i need to express that to everybody that you know we need to try to be the perfect technician. We always strive to be perfect right, but in all reality none of us will ever be perfect, but we just got to keep trying to be perfect because that's going to set us apart from the other technicians. Okay, if we have the drive - and we want to be the best - that is good okay, but we also need to understand - we will never be the best, but we're always always going to try to better ourselves and make ourselves the best technicians. That's the way that i you know, work and live.

My life is always trying to be the best. Okay, if you guys haven't already please check out my website hvacrvideos.com, we got merchandise available on there. It's a great way to help support the channel other different methods to help support the channel in the show notes of this video patreon paypal, youtube channel memberships, all that good stuff down in the show notes great way to support the channel. The easiest way, though super easy, is simply just watch the videos from beginning to end without skipping through anything, that's the simplest way to help support the channel okay uh.

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