Question about RELIANCE ELECTRIC WATER HEATER
Serial no: F95114746. Model no: 5 40 20RS0. What year is it ?
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Posted on Jan 02, 2017
it might be hard water in the heater. the hard water flakes and when your water heater turns on it creates some movement in those hard water flakes and makes a popping and hissing noise then when it comes to temperature it should stop. the temperature and pressure relief valve shouldn't make this noise. but if you stick your finger in the pipe and it is wet then you might have problems some where else. let me know if it is
Posted on Jul 29, 2009
this is either the thermocouple lead or the uni control i would replace the thermocouple leed first, these parts can't be repaired they have to be replaced
Posted on Jul 14, 2010
Check the breaker and top thermostat and make sure they are not tripped. Move onto replacing elements if above is not the problem.
Turn water and power off to heater and attach a water hose to bottom of heater to drain down tank. May have to open hot side on a facuet to get it to drain.
Once drained remove elements with 1 1/2" found at local hardware stores. once elements removed and new ones in place. Turn water on and get the air out of the system. Once water is flowing from the hot side from all of facuet's in house.
Once all air is out now yaou are resady to turn power onto heater.
Posted on Oct 10, 2010
Your Reliance serial number shows your water heater was made in July 1994.
Except for the Marathon water heaters, and copper-tank water heaters, all tank-type water heaters are made of steel. That steel has an enamel coating which people call a glass liner.
So in that sense, there is a glass liner.
See a photo of the liner:
Also inside the tank is an anode rode.
The anode is made to protect the steel tank.
Anode is made from lower noble metal than steel, so water reacts with the lower noble metal first.
The water eats away the anode rod instead of rusting the tank.
Once the anode rod is gone, the water begins rusting the tank.
The enamel coating does not protect the steel from rusting.
The tank rusts away and begins to leak.
Posted on Nov 01, 2010
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