I’ve told a million times that never gets old to me is that the old symbol is the Omega symbol which is an upside-down horseshoe yeah so I’ll tell people on the phone turn to that side down horseshoe alright so using my multimeter I’m going to test the element now for me to do this I’m going to touch each lead to one of the screws on the element and again we don’t want anything but the leads going past this plane here yes well with power off we can do some different things but if we were checking for power yes so powers off we roaming the element and we’re getting 12 point 5 ohms on this one so this is a good element right yeah and what are we looking for on the element what’s that what’s the range typically a good heating element it depends on the wattage and voltage but typically a good heating element is going to read anywhere from button 9 to 25 ohms okay this 45 hundred watt elements typically is going to read around 12 to 13 and receive we’re getting twelve point six and so this is a good heating element okay now what you would typically see on a bad heating else you can we’ve got one right here that bad one if I was to go test this you’ll see that.
I don’t get anything my meter doesn’t change showing that the element is open meaning the filament is broken inside the element so this is reading you to get on a bad element or the numbers may be way off okay and if the numbers are way off what is that that means it’s a it’s failed it means it’s bad but another possibility is this and this is something a lot of people don’t think of talked about tools getting beat around in your tool bag another possibility is that your multimeter is acting up exactly and so what I recommend anytime I’m going to work on a water heater I took quickly carry a common replacement part okay I’m working on electric water heater I want to make sure I have an element with me I want to make sure our thermostats with me so sometimes if I’m getting a wacky reading from a multimeter a lot of times what I’ll do I know this elements brand-new all right what’s good I’ll check it I’ll pull my meter or my element off the truck that I knows good check it if I get a crazy reading on it and I got a crazy russain waiting yeah yeah I know something’s probably going with my meter and that one’s maybe good but typically you’re most calmly calls for insufficient hot water is going to be that the lower element has failed if it’s a newer water heater it could be the temperature set a little bit low if it’s brand-new installation that’s usually something a customer is going to complain about pretty early on yeah and they need that that’s one of the things.
When you determine what they mean by not enough hot water or insufficient hot water do they have not enough or air is it not hot enough but you know if you’ve determined that it isn’t enough hot water then that’s whenever you would go and you would do the test that we just you know we just did so we’re looking at the lower heating element and we’re gonna check and see if that Helen heating element is bad so that’s what we were looking for 12.5 is what we got you know but you can get anywhere between 9 and 25 ohms on a typical heating element now another thing about the heating element now that’s something we need to be carrying on our truck yeah anytime you work on a water heater if I’m going to go out only carry common replacement parts right the good thing about a water and electric water heater really is is that the replacement parts you’re not out of a lot of money ok because you guys think if your cane around parts on your truck you’re out money for the parts right genuine do a war to claim or sell the parts an electric water heater its parts aren’t very expensive so it’s not that much of an investment you typically find electric heating elements pretty cheap you might want to carry on a couple of different common wattages and so just for your area to make sure you you have them they don’t take up a lot of room thermostats it’s something a lot of heaters actually take the same exact thermostat okay
So I mean it’s good to have them and that’s another thing to the thermostat actually how we’re sensing tank water temperature is we’re sensing it on the tank we’re sensing the tank temperature with that thermostat our way correct we’ve got one over there let’s show you some examples of some thermostats this is a lower thermostat on an electric water heater this actually has a bracket that holds it right up against the tank yes the way an electric water heater heats water is this it has elements that screw into the side of the tank that are completely submerged in the water so unlike a gas water heater to where we’re heating the tank to heat the water right an electric water heater the heat source is completely submerged in the water yes was it very efficient I mean it’s it’s whatever it’s creating it’s putting in the water that’s putting almost 100% of the heat into the water yeah which puts a lot less stress on our tank because we’re not super heating the tank but for this thermostat to work properly it has to fit up against the tank I’ll flip this around you see it has a metal back on it and has a little round indention in the back of the thermostat that’s the actual kind of like a probe it’s a bi-metal disk right technology it’s been around for years and years and years or how it reads temperature and so this has to fit flush up against the tank if it doesn’t it’s not gonna sense water temp yeah and that brackets there I mean if you have to replace that make sure it is against the tank because if it’s not it’s not sensing that temperature it can overheat the water heater correct it should be snug against the tank you shouldn’t be able to slide anything more than maybe a business card behind it and not usually they’re gonna fit firmly against the tank all right well that was insufficient hot water now we’ve got another call that the other call that would be typically taking which is a no hot water call and I know with a no hot water call.
We still have to do the same kind of thing in the beginning talking to the customer because we’re gonna need to find out if you know what they mean by no hot water I know that sounds silly to say what do you mean no hot water I mean it’s cold but you know you know ahead I have somebody actually say that you know I didn’t say they said they had no hot water and I talking to him and I was like I couldn’t figure it out we went through everything I mean we tested it every way possible I just couldn’t understand what they were meaning they had no hot water they actually had no water at all but to them they turn on the hot water faucet they had no hot water yeah yeah I mean I mean customers points of view are different than you know you may be thinking one thing but they’re thinking something’s so totally different so we’ve got to figure out what they mean no hot water you know we always have to make sure our definitions match exactly because it could you can have hot water in the kitchen but not in the bathroom and you know so really talk to the customer and figure out exactly what they mean when it comes to no hot water.
So we’ve determined that it is the water heater it’s not it’s they got a cold tank well and I’ll tell you an easy way to determine that because you do want to make sure if you have no hot water that you truly have no hot water exactly the easiest way to determine that is to actually go to the water heater neither touch the piping above it to see if it’s warm or touch the relief valve that’s screwed into the side of it and if it’s cold that tells you the whole tank of water right yeah yeah if that’s always give me the telltale signs to feel the the T&P valve because it will be warm if that tank is warm so so we’ve determined that if they have a cold tank now we got to go out there and work on it so what do I do when I’m as a service technician I’m going to the house what am i what do i do first well there’s a couple things I always do first if it’s an electric water here if they have no hot water the first thing I check is to break her in the fuse box okay because if it’s turned on I want to turn it to the off position remember turn off power before removing these panels and servicing the water heater okay so if the breakers on I want to turn it off typically if the breaker is off you might want to contact electricians something could be shorted out or something could be going on okay.