What you’re saying is power comes in at the top here goes through all that red reset button that’s EC oh and we’re gonna talk about that a moment yeah goes through the EC oh and then we power the upper part of the tank this this element gets its power and it’s going to run until the upper part of the tank is satisfied this thermostat has to be satisfied it comes up to temperature then we transfer power down to the lower part of the tank and I’ll go ahead and take this cover off as well yeah a lot of people think because the water heater has two elements both of them work at the same time right and that’s not how they work when the tanks cold the upper thermostat and the upper element come on first okay and then once it satisfies an upper third of the tank that transfers to the bottom which heats the lower two-thirds now when the tank heats up and it’s satisfied for temperature if we used to draw a hot water like say we’re gonna take a shower wash our hands or something cold water enters through the bottom of the tank if it’s top connect it comes in through and goes down to the dip tube okay on this heater side connect so it come in to the bottom Inlet down here which is going to cool the bottom part of the tank which is going to cause the lower element the lower thermostat to come on when it calls for heat and that’s what we’re talking about the lower part does most of the work and that’s why.
We put that inkle away element in there so it’s going to do most of the work if it’s sized properly like Kenny said it’s it’s the top part rarely ever comes on now I mean you know in some situations and this is out of our control if you get somebody like an apartment if somebody moves in and they’ve got they bring in more people than what they said and you got a lot of people there or it’s over the holidays or something like that you can be using more hot water and that’s whenever you get those calls saying I don’t have enough hot water and things like that because it’s undersized it’s not being able to keep up with the demand I’m normally correctly in sized water heater will be run from the bottom element running all the time really I mean that’s what’s doing all your heating is the lower heating up like I said earlier it’s the workhorse so it’s the one that works the most and so it usually typically four parts gonna fell it’s gonna be the parts that worked the most and so you know eventually that the that’s why we’re like you said we’re going to put the strongest element in there the best lasting element in the bottom because we know on a correct installation it’s going to come on in all the most again if you have questions about anything we’re covering here today go ahead and put that in the chat feature which is on the right-hand side of your screen just go ahead and type that in and after we get done we’ll go ahead and answers as many as we can so all right so that’s how this works every time we draw in hot water.
It’s excuse me draw and draw hot water out of the tab we’re putting cold water into the bottom of the tank right and the lower heating element and and thermostat heating element is energized first heats up the the lower part of the tag two-thirds of the tank and then until it’s satisfied and if if it’s totally cold then our upper heating elements gonna kick on first yeah sailing a new installation or when the tanks completely code the upper element the upper thermostat are gonna kick on first that’s well in a new installation say you just performed a changed out change the water heater it’s important to get all the air out of the tank before you ever turn on power it has to be completely full of water before you turn on Powell exactly and that’s one of the things you don’t want to dry fire that upper heating element so you know a good tip is to go ahead don’t even connect your power connect all your water lines you know once you’ve got it all installed before you connect power go ahead and run all the faucet hot water faucets and make sure that they’re running free no spitting and sputtering for at least three minutes so we get all the air out of the tank then apply power and then turn on the water heater so that’s the the easiest way to do that so you don’t dry fire and up or heating element okay.
So that’s how the water heater works now let’s talk about troubleshooting because most of the time the calls that they get is usually no hot water at all you know they don’t have any hot water and you know because nobody calls and says my water heater is working perfectly everything’s great they always call saying I’m cold and it’s not working yeah the only call then there’s a problem they never call and tell you how great some no all right so no hot water it could be a couple of different things first thing all you should usually check is to make sure that the tank is cold right easiest way to do that I have this nice brass relief valve usually it could be on the top or it could be on the side but you’re always gonna have a relief valve I just simply touch it okay if the relief valves hot but the complaint is no hot water then you have another issue that doesn’t involve the water heaters usually going to be something in the plumbing or something going on like that we know the water heaters working if that’s hot yeah we know the tank is full of hot water and something else is causing something nothing but cold water to come out yes so you’re gonna want to have to check a lot of other things I mean but it you’ll know that the water heaters working properly correct okay let’s let’s say that that we walk up to it and it’s cold what are my steps alright if I come up to the water heater and this is cold the first thing.
I do is go to the breaker and turn the breaker off okay right and once the breakers off only come to the water heater remove this upper access panel okay now when you remove it it’s gonna have the thermostat protector that you saw but you’ll see that red button or EC oh that’s the first thing I’m going to check this red button like says energy cutoff for EC oh it’s a safety device that cuts power to the elements if the water becomes too hot okay and if that ever happens you’ll still have power to the heater the power won’t reach the elements okay so I’ll have power to the here but it will not be going past this easy oh yeah well not go crazy oh yes but that means to water become too hot usually more than 170 degrees and so what we’re gonna do is press the button if you press the button and it clicks that means the water got too hot and it’s caused by one of two things one first thing would be either a grounded or shorted element the second thing would be a stuck thermostat so I’m going to do a little bit of checking to see what the problem okay so if you have to press the reset button and it does click that’s not the time just to go ahead and button everything back up and move on you do have a problem if you have to press that reset button so and let’s talk about that what’s the most common issue whenever it does click the most common issue of the reset button strips usually going to be a grounded or shorted element okay now that’s something you are going to require multimeter to check for okay and so and I kind of give you an example of how to do this let’s see.
I need a Phillips screwdriver Jerry yeah right here alright so using my multimeter I’m going to turn this to the own setting which is uh or continuity setting which is usually shown by the kind of like a Wi-Fi symbol or an upside-down horseshoe and then let me click this around this wire just to hold it for me can you hold that up yep alright so to check for a grounded or shorted element powers off I remove the two wires going to the element I’m gonna just bend them out of the way and you can hold that meter for me so I move the wires out of the way my meter is set to continuity meaning I’m going to have usually an audible beep whenever I touch the leads together and so what I’m going to do is touch each screw on the element to our ground now the tank is a good an excellent ground because it is grounded or you can use the thermostat bracket which is kind of easy to see okay so I literally just go from each screw to the ground and my meter should not change and my meter should not be panned you you can see on this one it’s not changing it’s not beeping if it was to be or the meter was to change that would mean that the element is grounded and needs to be replaced okay now you want to check both elements when you do this I just did it to the outer one but you get thigh that’s the same thing remove the two wires from the element each screw to the inner tank which is ground and if it beeps or the meter changes the elements grounded that’s why it’s overheating and you would need to replace that yeah and if you’re gonna replace the element if you come to that situation.