20 Most Recent
Rheem 40 GAL ELEC TALL Water Heater 6YR SC 82VH402 - Page 4 Questions & Answers
I have a 135 litre, 10 year old Rheen mains pressu...
usually on the hot water piping, It starts to rust closed faster than the cold side, due to electrolosis. What you r discribing are the first signs of this happening. only solution is to replace the effected pipes..
Test procedure for elements and thermostat
Remove upper and lower access panels
in upper access, use voltage tester to test voltage of on the uppermost terminals above the red reset button. should be ~220V between terminals (110 to ground)
If not: breaker off or bad,
If 220V proceed:
Test the two terminals immediately below this reset button should be 220V
If not: reset tripped or bad
If 220V present, proceed.
Turn off breaker to heater.
Use ohm meter or continuity tester.
test resistance across upper element terminals -should be 10 to15 ohms
check between each terminal and ground -should be open circuit .
If not replace element
Repeat for lower element.
test across lower element thermostat should be no resistance when stat turned up so it clicks on.
(To test that lower stat turns off, allow tank to heat up completely before conducting this test) Turn sta temp down so it clicks off then test across stat terminals -should be open circuit
The upper thermostat is a 3 way switch
The simplest way to test it is to turn the power back on turn the upper stat all the way up so it clicks on and use voltage tester across the UPPER element terminals, should be ~220V
Now turn the upper stat down so it clicks off- check upper element should be 0 V between upper element terminals -(Caution ! terminals will still be live 110V to ground)
The upper stat has now sent power to lower stat.
Turn lower stat up so it clicks on, check Voltage across lower element -should be ~220V turn lower stat down so clicks off, should be 0 V across lower element terminals.
NOTE If tank is completely cold the upper stat will not switch off and wont send power to lower stat.
If lower tank is cold lower stat may not click off even when turned down.
normal stat setting is 125 to 130
The hotter you you set the stat, the faster your tank corrodes.
How do i replace bad
It's necessary to drain at least some of the water from the tank in order to keep the floor surrounding the water heater as dry as possible. If the top element is the bad, (non-functioning), one, you'll need to drain off enough water to allow the removal of that element at least. That would be approx. 10 gal.'s. To drain water you must first turn off the feed line valve to the water heater, then attach a good hose to the drain spigot near the bottom of the unit. In order for gravity to help drain this tank, you must find a position for the hose so that the opposite end from the one attached can lay in a spot that's lower than the tank itself. Then open the drain spigot and the brass overflow valve. This allows air to gain entrance into the tank, which helps push the water out. If the lower element is the culprit then you must drain nearly, if not, all of the water from the tank. You'll need an element socket, which you can buy from the home center, or hardware store where you buy your elements. Actually, if you're going to do one, you may as well do both. It doesn't take that much more effort and then you're covered for another while. It's also wise to take at least the top part of one of the old elements with you when you go to get the new ones, to make sure they're a good match.
Not finding what you are looking for?
