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We have an economy 7 water heater,but even though its on a timer we have suddenly got no hot water!could this be the thermostat? if so where do i locate it on the water tank?

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Check thermostats in emmersion heaters not a big job cheap to buy best of luck

Posted on Oct 12, 2009

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Brand new electric hot water heater doesn't get water hot


Call Rheem
Reset breaker fully off and then fully on.
Test for 240 Volt across top two screws on upper thermostat
Press reset button located on upper thermostat
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#reset

Gene

Water Heater Timers Save Money

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Jul 01, 2014 | Rheem Water Heaters

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Off peak hot water not heating!!! :(


The Economy 7 can control different types heater. Some heaters do not have off-peak ... but you can solve problem..
Copy following link:
http://waterheatertimer.org/pdf/QE7-INSTRUCTION.pdf
If timer is wired to two different elements, then the night rate element or off-peak element might be burned out. Test element with multimeter.
http://waterheatertimer.org/How-to-test-water-heater-element.html
Also this timer is wired so either Off-peak is getting power or Boost is getting power, but not both at same time.
If heater has off-peak element, then there will be a wire connected to terminal 5, going to heating unit.
If there is no wire on terminal 5, then there is no off-peak element, or wiring has not been connected. However you can change the timer function by moving wire on terminal 4 to terminal 5. Then only the off-peak timer function will operate, and not the boost.
You can also fool the timer, by setting time clock differently. Instead of setting timer for current time, rotate the dial and fudge current time by 10-12 hours so water heater thinks it's time for boost, but the actual time is during off-peak hours.
If terminals 4 and 5 both have wires, then either the element is burned out, or the timer has malfunctioned. Again, you can fool the timer by setting current time differently, and solve problem.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Apr 26, 2013 | Water Heaters

1 Answer

Recirculation pump goes on even when not timed by timer i.e, it's one during times not set by the timer. My thermostat on my hot water heater is set to "warm" not "hot". So the pump...


Open following link for Re-circulation information and resources:
http://waterheatertimer.org/Water-heater-recirculation-system.html

On a new Autocirc, you can choose between 'Timed' operation or 'Thermostatic' operation using the slide switch located below timer dial.
For Thermostat operation, slide switch to ON.
For Timed operation slide switch to Timer.

This solution assumes system is functional, and the check valve and internal wiring are working. Autocirc is a quality product.

Add a comment with outcome so others with same problem will benefit.

Absolutely feel obligated to upvote the free help.
Or take advantage of fixya paid help.
For a price, expert works with you while you work on autocirc or any do-it-yourself project.
Fixya is always less expensive than a service call.

May 03, 2011 | Laing Thermotech Autocirc Undersink...

1 Answer

No hot water


You posted under Rheem 40 gallon electric water heater, which is two-element 240Volt heater.
If this is not your heater, add a comment.

If you suddenly have no hot water, that narrows the suspect list.

Step1:
Check for tripped circuit breaker.
Open top cover on water heater and push in reset button on upper thermostat.
If reset button is tripped out, and will not push back in, then replace upper thermostat.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
Put ear against tank and listen for bubbly-fizzing sound that says heater is ON.
If reset is not tripped, then move to step 2

Step 2: use tester or multi-meter and test across top two screws on upper thermostat for 240Volt.
If heater is not getting 240V, then test circuit breaker.
Move water heater wires from 240V breaker to another same-amp 240V breaker and see if that restores power.
You may need to replace breaker:
http://waterheatertimer.org/How-to-replace-circuit-breaker.html
If problem persists, then you might have a line problem between breaker and water heater.
Open cover on top of heater, and check connections on top of heater.

Step 3:
If heater is getting 240V, then upper thermostat or upper element is bad.
I suggest 30 minute troubleshooting which could save you a service call, and will be valuable information in the future:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, fixya expert speaks with you over phone while you work on timer.

Jan 08, 2011 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Very hot water then it kicks off and I have to frequently reset


Even though the water is very hot do you run out quickly? If so the problem is the 'dip tube' if not it is most likely the upper thermostat.

May 07, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

Economy 7 water heater prblem


If you are still getting power to the HW heater, more than likely the heating element has gone out.They can be easily changed from behind little panels on side of heater. Usually screw in.

Aug 20, 2009 | Water Heaters

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