A water heater that produces no hot water may not be getting power or it may have a tripped limit switch or one or more failed heating elements.
The hot water heater is not working.
Your hot water heater not working properly if.
You turn on the hot water tap and get cold water instead.
You re running out of hot water.
If you feel warmth your water heater is probably working.
This tells the heater when to stop making water if it reaches a certain temperature.
To rule out an undersized heater check to make sure the heater has 75 percent of its capacity as hot water.
Not having enough hot water is a relatively minor issue.
You get a rotten egg smell in your water.
Check the circuit breakers in your fuse box.
The most obvious reason an electric heater doesn t work is that it s not receiving any power.
Faulty thermostat the upper thermostat on an electric water heater actually controls both the upper and lower heating elements.
Reset the breaker or replace the fuse as necessary and restart your water heater.
Depending on the cause of the problem the solution can be extremely simple or complex and expensive.
A water heater not getting hot enough is usually to be blamed on the thermometer built into the unit.
If the breaker has tripped switch it off then switch it back on again.
Too little hot water.
Over time water contaminants can build up and harden in the bottom of your water heater reducing its ability to produce ample hot water.
Pilot light flame has blown out.
Possible reasons for the malfunction include.
There is corrosion in the fittings.
This causes the dreaded hot water not working situation.
The lower thermostat controls only the lower heating element so if it fails but the upper thermostat works the result is hot water not getting hot enough.
When the water s not hot enough the problem can be an undersized water heater crossed hot and cold connections or a faulty heating element or thermostat.
If the fuse has burnt out or the circuit breaker has tripped that directly controls the electricity for your heater it will not work.
Hot water heater not working.
If you have no hot water there are several possible reasons and you need to work through each of them methodically to eliminate each one and this will also depend on whether you have an electric or gas powered heater.
When a standard tank style gas water heater stops producing hot water it means that the gas burner is no longer producing the flame necessary to heat the water.
Of course the tp valve or pipe could still be warm if the water heater stopped working within the last 3 or 4 hours because the water inside would still be holding some heat.
The hot water may be getting blocked somewhere in the pipes between the water heater and the fixtures.