Question about Rheem RUUD ELD40 Water Heater,electric,40 Gal,208v,4.5kw 3CFG6
1) Water heaters can be wired many different ways.
Copy following link For ordinary household 240Volt water heater, the heater is wired for non-simultaneous operation:
Copy following link For other wiring diagrams, including off-peak, simultaneous, redundant, etc
2) Make sure water heater circuit breaker and wire size matches watt rating that shows on end of each element.
3) Non simultaneous means only 1 element is ON at a time.
So either upper element is ON, or lower element is ON, or both elements are OFF.
Both elements are never ON at same time.
So non-simultaneous water heater with two 4500 watt elements has total connected watt rating of 4500 watts. Because only 1 element can be ON at a time.
Use 30 amp breaker and 10 gauge wire.
Posted on Jan 20, 2013
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Posted on Jan 02, 2017
SOURCE: installed new rheem 40 gal
did you turn the power on BEFORE you filled it with water???
this is a pretty common mistake. you will need to check the upper element to make sure its working.
most water heaters have an upper and lower themostat. the upper thermostat is the one we need to check.
use your volt meter...
turn the power off, test with your volt meter to make sure! remove one wire from the element, not the thermostat, and check resistance on the element. if no resistance, you burned the element, and will need to replace it.
replace with same wattage, usually 4500watts. it will be written on the element.
also, I like to push the reset button on the thermostat to make sure it wasn't tripped.
Posted on Aug 31, 2010
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Yes, the reset probably is tripped...push in the red button hard
Then turn it on and try it...
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