Water Heater Repair Tutorials

Want to learn how to repair your water heater?

Maybe you just want to know what's wrong with it before you call a repairman.

In most areas you can expect to pay $100.00 to $150.00 for a simple repair.

Many problems are easy fixes. Some are more complicated.

You should only attempt repairs if you feel confident to do so safely.

water heater gas valve

This site covers most problems that you 

may have with residental gas and 

electric storage water heaters.

What we don't cover at this time 

is fan forced vent gas units and

digital control valves.

If you find yourself with no hot water, usually nights and weekends (go figure), 

you should find the information you need here.

Popular Water Heater Pages

Hot Water Pressure Low

Covers hot water pressure problems at your sinks, tub and shower,

clothes washer, hot water pressure low in whole house.

Water Temperature

Environmental Protection Agency recommended temperature settings.

Occupational Safety & Health Administration recommended settings

under certain circumstances.

How to check and adjust your hot water temperatures. Water to

hot, not enough hot, water cold.

Reset Button/ Limit Switch

Where to find the reset button. Why did it trip off? How to

reset it, or replace it.

Heating Elements

How to test or replace an element. Different types of elements.

Information you will need to purchase an element. Frequently 

asked question.

Gas Control Valve

Different problems associated with a gas valve.

Many times the gas valve is not the problem after all.

Electric Troubleshooting

No hot water, not enough hot water, water to hot,

slow recovery, testing parts and more.


Covers different types of thermocouples. How they

work, common problems, how to replace.

Check Your Power

No hot water, reset button has not tripped.

Check to see if you have power coming into

your unit.

Pilot Light

How to light the pilot light on both older and

newer units units with a spark igniter.

Water Heater Noises

There can be all kinds of strange noises coming from

your tank. Some customers has described them as,

humming, rumbling, singing, screaming, cracking,

popping, tapping. Noises can be very annoying,

especially if you are trying to sleep.

FVIR water heaters

This is a pic. of a flammable vapor ignition 

resistant (FVIR) gas unit. These units

came on the market in 2005. On this site we

usually refer to them as new style units.

Lighting a pilot light

This is a pic. of an older unit. Production

was stopped in 2004. Most are probably out 

of use now. These pilot lights had to be lit

manually with a flame.

electric wh access panel.

Improvement to electric water heaters have 

been great for consumers. 

Low watt density elements create less 

sediment and last much longer than 

standard high watt density elements. Less 

sediment means longer tank life. 

Two anode rods instead of one also increases 

the life expectancy of the tank. Tank insulation 

was doubled in new units as of 2016.

Electric units range in sizes from 2 1/2 gallons

and up. Small tanks up to six gallons are ideal

to place under sinks. 

Smaller ones are 120 volts, larger units are

240 volts. Larger units are also sold with 

single or duel heating elements.