Restore Water and Power — Refill the Tank
Part of project
How to Replace an Electric Water Heater Heating Element · Step 8 of 10
In this video
With the new tank installed, slowly turn the cold water supply valve back on. You will hear water refilling the top of the tank and the pipes. Go back to the faucet you left open and wait for a steady stream of water to flow out, which purges the air from the lines, then turn it off. Carefully inspect the new connection at the expansion tank for any leaks. Once you are sure it is dry, return to the electrical panel and switch the water heater breaker back to the 'ON' position.
Goal: Repressurize the system and restore power
- Open the water valve slowly to prevent a 'water hammer' effect, which can damage pipes.
662K subscribers
FAQs
What are the most critical safety steps I must take before replacing an electric water heater heating element?
Always start by turning off the power to your water heater at the circuit breaker and verifying it's off with a non-contact voltage tester. Next, shut off the cold water supply to the heater and drain the tank completely. Failing to do so can result in serious electrical shock or water damage.
Can I use a regular socket wrench to remove the heating element, or do I really need a specialized element wrench?
While a standard socket might fit, a specialized heating element wrench (like the Rheem PROTECH Dual Head Element Wrench listed) is highly recommended. It's designed for a snug fit, reducing the risk of stripping the element's hex head, which can make removal significantly more difficult.
The project is listed as 'beginner' and '4 hours' – is this realistic for someone with no plumbing experience?
Yes, it's beginner-friendly as long as you follow all safety procedures and instructions carefully. The 4-hour estimate accounts for the time-consuming process of fully draining and then refilling the water heater tank, along with potential delays like a stubborn element.
What's the most common mistake new DIYers make when replacing a heating element, and how can I prevent leaks?
A common mistake is not fully draining the tank or not properly seating the new element's O-ring/gasket. To prevent leaks, ensure the O-ring is perfectly positioned before tightening the new element firmly, but not excessively, and carefully monitor for drips after refilling.
Restore Water and Power — Refill the Tank
Part of project
How to Replace an Electric Water Heater Heating Element · Step 8 of 10
In this video
With the new tank installed, slowly turn the cold water supply valve back on. You will hear water refilling the top of the tank and the pipes. Go back to the faucet you left open and wait for a steady stream of water to flow out, which purges the air from the lines, then turn it off. Carefully inspect the new connection at the expansion tank for any leaks. Once you are sure it is dry, return to the electrical panel and switch the water heater breaker back to the 'ON' position.
Goal: Repressurize the system and restore power
- Open the water valve slowly to prevent a 'water hammer' effect, which can damage pipes.
Frequently Asked Questions
What are the most critical safety steps I must take before replacing an electric water heater heating element?
Always start by turning off the power to your water heater at the circuit breaker and verifying it's off with a non-contact voltage tester. Next, shut off the cold water supply to the heater and drain the tank completely. Failing to do so can result in serious electrical shock or water damage.
Can I use a regular socket wrench to remove the heating element, or do I really need a specialized element wrench?
While a standard socket might fit, a specialized heating element wrench (like the Rheem PROTECH Dual Head Element Wrench listed) is highly recommended. It's designed for a snug fit, reducing the risk of stripping the element's hex head, which can make removal significantly more difficult.
The project is listed as 'beginner' and '4 hours' – is this realistic for someone with no plumbing experience?
Yes, it's beginner-friendly as long as you follow all safety procedures and instructions carefully. The 4-hour estimate accounts for the time-consuming process of fully draining and then refilling the water heater tank, along with potential delays like a stubborn element.
What's the most common mistake new DIYers make when replacing a heating element, and how can I prevent leaks?
A common mistake is not fully draining the tank or not properly seating the new element's O-ring/gasket. To prevent leaks, ensure the O-ring is perfectly positioned before tightening the new element firmly, but not excessively, and carefully monitor for drips after refilling.