Replaced Upper Thermostat In Electric Water Heater, And Still Have No Hot Water?
We had no water coming to the house for a little while, and water heater was running with low water (we forgot about it). When we got water again, the water heater stopped working. We tested the thermostats and heating elements, and everything had continuity, except the upper thermostat which we replaced. However, we still have no hot water. Any suggestions?
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October 10, 2009 @ 7:04 pm
I agree with the othere answer about the 2 thermostats~~
October 10, 2009 @ 9:28 pm
Your heater elements have burned out, the continuity test would have to have been done under a load, otherwise it is meaningless, which Im sure it was not. And if you have 220 volts at the thermostat with a good element you will have heat.
October 11, 2009 @ 3:48 am
A few years ago, I replaced one of my elements and whenever the power came on for the h/w heater – it would trip the circuit breaker and turn the current off. Didn’t have this problem BEFORE I replaced one of the heating elements.
Had an electrician take a look at it but he could find no problem.
Finally, took a look at the top and bottom heating elements – they were coming on at the exact same time – which was overloading the electrical circuit. I raised 1 element’s thermostat’s setting. And lowered the 2nd thermostat’s setting a couple of degrees. No more problems.
So, check your fuse box/circuit breaker – if its blown – this might be the cause.
October 11, 2009 @ 4:47 am
testing continuity on the elements is useless to determine if they are bad remember electricity travels through water the best way to checkis with a clamp on amp meter to see how many amps the elements are pullin 4-6 good 0 bad
October 11, 2009 @ 6:12 am
Reguardless of your test, you have a bad upper element. An element that comes on without water goes off like a flash bulb. The top thermostat must be satisfied b4 the bottom element will cycle on.
October 11, 2009 @ 12:03 pm
a repair guide for you ..
This guide assumes that the hot water heaters were properly installed and were operating correctly before any problems developed.
Most electric hot water heaters have two thermostats, one near the top of the tank and one near the bottom, and are covered by removable metal cover plates. The thermostats are pressed firmly against the bare metal wall of the hot water heaters tank.
The top thermostat usually has a high limit switch that will trip if the water gets too hot. When it trips it shuts off the electricity to both the upper and lower heating elements.
To reset the high limit switch there is usually a red button that you must press. When the upper limit switch trips it is often an indication that something else has gone wrong with the heater.
October 11, 2009 @ 6:43 pm
There are some good answers already. You might want to make sure you have 220 volts at each stat and each element. Make sure the breaker is on, or the fuses are in place. Get your tester out, and with the power on, start checking for power from the first device to the last. If you do not have 220 to the water heater, check the circuit breaker or fuses. If you have power all the way through to the elements, and you are getting no hot water, the elements burned out.
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