All right so today we have got a service call on a Manitowoc ice machine that is not working correctly and if you look right here, we are off on a high-pressure cut out, so we've got a bad fan cycle switch, let's confirm as soon as my head Pressure gets above 300; okay, we have 208 volts across the fan cycle switch. So what I'm going to do is I'm going to bypass it and show us how the motor is working. So I went in there and I pulled the lead off of the fan cycle. Switch and put it directly on the contactor back in there, and now my condenser fan motors running and my head pressures coming down.

This is a very common issue on the Manitowoc ice machines. These fan cycle switches go bad all the time so we're gon na see. It really depends. If this machine is under warranty, then I have to put that factory one back in.

If it's not under warranty, I can put an aftermarket one in that won't fail very, very common issue on the match box. Is these fan cycle switches? So if you don't know how they operate, basically, sometimes it'll say it on there yeah. It says it's a switch that is normally open, okay and it will only close when the pressure gets high enough. Okay, so the the switch closes when the pressure climbs.

So when the pressure climbs to 250, the switch closes when the switch or when the pressure drops below 200, the switch opens, and it's just a way to help with capacity on the unit. These machines use a cool vapor discharge on the defrost. It's similar to a hot gas defrost, but it just we can go into that later, but anyways they use a cool, vapor defrost and we need high head pressure or high your head pressure when we are deep frosting. So it cycles the fan, along with bypasses the condenser with the head master valve or floods.

The condenser, I should say to increase the head pressure. So between the two, we have a flooded condenser and we have a fan cycle switch. It drives the head pressure up in the wintertime and helps us to get that higher head pressure. So that way we can defrost the ice properly.

Okay, I'm currently making a flare okay and when you're making flares it is. It is easy, but you also can mess it up really easily too. The biggest thing when you're making a flare is you've got a deeper, the pipe okay. So when you cut it, you naturally pinch the pipe down.

Okay, it's probably difficult to pick it up on camera, but that opening has been pinched down and there's a nice little burr, because your tubing cutter applies a lot of pressure and a cylinder and when you spin it it just actually smash through the pipe down. You can't always do this, but on quarter inch pipe, there's actually a little trick. What you can do is actually use your tubing cutter and only score the pipe okay, so you're only gon na go deep enough. It's kind of a thing that you have to you know trial and error figure out how deep to go and then you're actually gon na snap, the pipe off and you will get a fur free cut completely.

You will not have to Bieber it. This is good because for some reason I can't find my small deburring tool right now, so I kind of did this and realize what happened? Okay. So this is what I'm talking about scoring it. Another cameras having a hard time focusing, but I just went around and I did not pinch the pipe.

I just cut the outside edge and now I'm gon na snap that off with my pliers, so the one on the left is the one that I scored and snapped off the one on the right is the one that used a tubing cutter. So you can see. There's there's quite a bit of a difference and you're not gon na have any burrs in your flare. So it's just a nice clean even break again.

This is going to be hard to do on larger diameter pipe, but because it's quarter-inch is really easy. So then I was able to flare it and I don't have any damaged bird ends on the flare. I know it's hard for the camera to focus on this, but so now I've got my little mechanism right here that I need to assault. Okay.

So here's what we did, we had a bad fan, cyclic control. I found out that the unit was not under warranty anymore, like I had mentioned before. These units have a problem with the fan cycle controls it's a known problem with the factory the little peanut pressure controls go bad all the time so because it wasn't under warranty, I'm doing the customer a favor by putting an aftermarket fan cycle control, I'm not a Fan of doing that - and I know I preach in my videos to use factory parts and I really do suggest it, but this is one of those situations where I need to make an exception. These things constantly go bad so in it they're welded in two.

So you either do a pinch off tool and I'm braze it and put it on or you recover all the charge or you can do what I just did right now, it's out of warranty, that's very important, as I installed a pressure control right here and used Service T that had a Schrader depressor in it, so I was able to screw it on with pressure in the system, put some dialogue on it. Tighten it up and I did not have to recover the charge at all and I set the fan cycle control to where I want it, and I'm gon na watch a cycle right now and see where the fan cycle control turns on okay. So this is one of those situations where I'm gon na say yeah it's better to go ahead and put an aftermarket control in because it's gon na save the customer some money all right, nothing too crazy. This was just a fan cycle switch that went bad on a Manitowoc ice machine.

Okay, like I said you know normally I'll, throw the factory one back in, but oh my gosh, if you guys, if you guys don't know, if you do you guys understand, I mean these things go bad, so much it's kind of ridiculous, so but anyways the one That I put in the Johnson control - I don't the part number, but it's just a standard pen, Johnson control, whatever controller they last forever. There's you know that they're not going to go bad and you know I would say that the factory one that was in there probably lasts two years, if that, if you're lucky so save the customer, a headache there and just so that you know, I did keep The customer in the decision-making process on that I did bring it up to them and say: hey here's the deal this is what's going on. You know I could do this right now. I can order the factory part.

I highly suggest this and you know just let them kind of be part of the decision-making process. Okay, so you don't want to just kind of do things on your own and be like a cowboy just, you know fixing it your way. I like to try to keep the customer in the loop and let them know what's going on. You know I don't make those decisions lightly, either going away from the factory engineered units, but once you get confident and start working in the field a lot and really work on the equipment, you start to know what works and what doesn't work.

You know I really really preached about using factory parts and not changing the way that the box was designed, but there is times where you have to do that. Okay - and I may not preach about it enough in my videos. You know, because I try to instill the idea of putting the box back together, the way that it came or the unit or whatever it is. You know and then there's those instances where you have to kind of try to do things on your own and and make an educated decision to say hey.

This is gon na save the customer money in the long run. So that's where we're at. I want to say thank you guys so very much for taking the time to watch my videos. I really really appreciate it.

Okay, I will catch you guys on the next one. Okay.