Question about Heating & Cooling
Electric heaters have safety thermostats and possible one has tripped. Also find out why the wire shorted in the first place.
Posted on Dec 06, 2010
SOURCE: Two out of four elermants
If you know that the element is not working and the element is new then you need to use an electrical meter to trace down the power and see where it is stopping at...
My feeling is that you have a bad relay and that is your problem.
The power goes through the relays or contactors to get to the elements... the contacts will burn after a while and then the power will not flow through properly.... or at all.
Check the relays with an electrical meter and make sure that the power is coming in and going out of them...be careful to check and make sure that you haev240 v across the element ends and not just 120v...they will not heat on 120...
Remember that you can have 120v power there but you need to have the other leg and get 240v there for them to work...
Posted on Dec 07, 2010
SOURCE: Rheem Water heater model number
The bottom element is usually the first to go, without a amp clamp its hard to tell for sure.
To change it out turn off power and then the water, then drain the tank you will need to open the Pressure Temperature relieve valve, to release the vacuum as water is draining out, You will need a socket wrench to remove the element, Its 1 1/8 inch I think. The hardware store has one you can buy just for the element, if you water has minerals in it you will find debris in the bottom of the tank, you will have to get creative to get the tank clean, a shop vacuum and a pvc pipe small enough to get into the element hole and have fun.
Posted on Jul 04, 2011
Tips for a great answer:
Because electric tankless water heaters have to instantaneously raise the temperature of incoming water to a selected hot water temperature, they require very powerful heating elements. To power the heating elements of this 27,000 Watt model, you will need to upgrade the electrical service you were using for your storage tank water heater. The PowerStar AE125 will require a 240V, 200 Amp service. In addition you will need to install three 40 amp dedicated double pole breakers in your electrical box. In Canada, you will require one 120 Amp breaker.
The PowerStar AE125 electric tankless water heater incorporates a very sensitive flow sensor, and three heating elements. The heat from the electric elements is electronically modulated on the basis of the flow rate of the water entering the water heater, and the temperature rise that the water heater must achieve. Through its electronic modulation system, the AE125 maintains a very precise hot water temperature. As a safety precaution, each of the three heating modules is protected by an electro-mechanical thermal cut-out. This device will cut power to a particular module if the temperature gets too hot.
This will help.Thanks.Helpmech.
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Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifier
Dehumidifier is running but no water is in bucket
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