Why would a water heater trip a circuit breaker?

There are three possible explanations for a breaker being tripped by a hot water heater: water dripping on the electrical lines, a problem with the unit’s thermostat or a problem with the breaker. A malfunctioning thermostat is the most common cause.

Where is the fuse on an electric water heater?

The heater is usually fused in the main electrical panel but some electric water heaters may be fed from a separate fuse or circuit breaker box. If the fuse is blown or breaker is tripped, replace the fuse or re-set the circuit breaker.

What is the right circuit breaker and cable for an electric water heater?

This electrical wiring project is about the Electrical Wiring for a Water Heater in a Home. [ad#block] Electrical Question: What is the right circuit breaker and cable for an electric water heater? My electrical wiring project involves Change the Wiring a Water Heater in the Bathroom of a Mobile Home.

What happens if you flip the breaker on your water heater?

But before we get into those problems, there are a few things you need to know: Do not keep flipping the breaker back on. This can overheat the wires in the circuit (which can lead to a fire), wear out the circuit breaker (which can cause it to not trip later) and damage your water heater further.

How big of circuit breaker do I need for 1500 watt water heater?

In a US household, the current draw for a 1500 watt water heater is 12.5 amps. Now, in order to choose an electric breaker, multiply the current draw of the water heater with 125 per cent in order to determine the size of the breaker you will need. In the above example, we would require a 15.6 amp circuit breaker for our US readers.

What does it mean when your hot water heater trips a circuit breaker?

When the hot water heater continuously trips a circuit breaker in your home, it’s a sign that there’s a potentially dangerous problem that needs immediate attention. Simply turning the breaker back on will not solve the problem.

What kind of breaker do you need for a water heater?

I agree with you that this water heater circuit is not a typical configuration, and the common circuit for a new home is #10 copper wire protected by a 2pole 30amp circuit breaker, however lets look at this application carefully.

What to do if your hot water heater flips?

In this case, the thermostat should be replaced. It may be worthwhile to replace the heating element at the same time. A leak that allows water to come in contact with any of the electric components is dangerous and can cause the breaker to flip.

How many amps does an electric water heater need?

You have stated that the calculated amperage load for 4500watt at 240volts is 18.75amps, however NEC Article 422.13 states that the minimum circuit rating for a water heater must be 125% of the rated load, so this 4500watt load requires a minimum circuit of 23.44 amps at 240volts.