We have a service call in a delfield one door reach in with a cold rail. This is a self-contained unit. The complaint is that the top section is not working bottom, they say is okay, but it's nice and cold on top and bottom at the pro Mac. I just walked in someone has installed a sight glass on this.

This usually doesn't come with one, but it also looks like this might be an aftermarket condensing unit, because this doesn't look factory so we'll check it out. I'm feeling the need to go ahead and put service gauges on this guy, because the cyclops that they did install is currently flashing. So that's not a good sign. We will see so the cyclist isn't flashing after all in the bottom to the bottom is actually satisfied at the moment.

So I have just the top running run in a clear sight: glass with the top runs by itself when the bottom runs by itself or when both of them are running earlier. It must have been coming down my pressures book adhesive, so I'm just monitoring the box and the top is actually nice and cold, but they were complaining about the top, but I don't like how the bottom is getting to 40 to 43 degrees. That is a problem. Okay, so this is where things get a little confusing, and I'm gon na explain to you what I'm seeing here so first off the service request that they sent me was an automated service request that they typed in on a computer, and it said that the unit Had no power, but it was plugged in so when I got here you know had power and it was cold, but the manager said the top section wasn't working the top sections full.

He said nothing about the bottom. In fact I said the bottom was working. Fine. Now I asked him to clarify the hold: no power top, not working.

You know things that I've heard and he doesn't know so. This is things that we run into. I mean I don't doubt that the unit has problems. I just don't want to ignore the original problem, so that's what I'm trying to get to the bottom of it, but so far I'm not seeing anything wrong with the top section.

It's nice and frosty cold. I adjusted it a little bit colder, but we're frosting up like we should be everything's. Good refrigerant pressures are great sight, glasses, clear, but I do see a problem with the bottom, the temperature controllers not cutting in at the right temperature and it's getting too warm in the. So it's just the some of the things you run into working on these boxes.

You really got to kind of investigate because I don't want to just say it has a lot of bad temp in full and then find out that it's tripping the breaker. You know but everything's fine right now and the manager doesn't know anything else. That's on duty. Okay, so I'm gon na go ahead and attempt to replace this temperature controller for the bottom, because it's cutting in at like 43 degrees every single time - and this is a constant cut in control, so we'll see what we can show you on this okay.

So this is the control back behind this cover. We have these made when we change these coils, because these controls constantly go bad from the water dripping on them, so we just put like a little cover over them. You can see the sensible two embedded in that coil and it's a constant cut in control, so it should always be turning on right, around 39 40 degrees, and it's not obviously - and I don't see any problems of flooding back or starving. So it doesn't look like it's gon na, be a txb problem.

Okay, so we're running. Now after I changed the temperature controller, it took about three cycles: the first cycle, the temperature controller, still turned on at 42. The second title cycle turned on at 41 and the third cycle right now it just turned on at 40, so sometimes it takes a minute for the controls to kind of get acclimated to the box, but so now the bottom section is turning on at 40. You look at the bottom, that's the maximum temperature and it's turning off at 32.

So it's ranging 32 to 40. So it's important to remember the colder. I set it the lower the minimum temperatures gon na get but the 40 degrees the maximum temperature is never going to change because it's a constant cutting controller. It's constantly gon na cut in at the same coil temperature every single time.

So it looks like we just had a bad temperature controller. I can't explain why they complained about the top. I did adjust the the control for the top a little bit colder, but it's working fine at this time and other than that. That's pretty much! It guys.

We're running good okay, so we had a service call in at delfield reach and that wasn't working. It was kind of confusing service call, because the service take has said one thing: the manager told me another thing and then I found something completely different. Sometimes that happens. You just need to be able to investigate - and you know, talk to the management and think things through, so I ended up finding that the unit had a bad temperature controller.

I replaced the temperature controller and everything was working properly other than that. So the unit was good to go and I just kind of gave myself a disclaimer when I talked to the manager and told him that I never found the original complaint, I never found anything wrong that could have caused the original complaint of no power. So I just told him to keep an eye on it, and you know he was happy with that. He was just as confused as I was because this the manager that had placed the service call wasn't there and wasn't answering his phone, but other than that.

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