Difficulty
Moderate
Steps
7
Time Required
1 - 2 hours
Sections
1
- Water Heater
- 7 steps
Flags
0
BackHVAC
Full Screen
Options
History
Save to Favorites
Download PDF
Edit
Translate
Get Shareable Link
Embed This Guide
Notify Me of Changes
Stop Notifications
Introduction
An electric water heater is a tank that heats water using high-voltage electric rods that run through the tank. Water is heated starting at the center of the tank and radiates outward. These heaters can range in size from two to 50 gallons.
An electric water heater may need be to be replaced when you notice decreased performance and/or it is nearing the end of its lifespan (about 10-15 years). Before starting this project, learn whether your electric water heater needs to be repaired or replaced. It is also important to find out how to safely get rid of your old water heater.
What you need
Step 1
Water Heater
- At the breaker box, locate the breaker for the water heater. Switch the breaker bar to the off position.
- Using a multimeter, check the line voltage at the water heater. The multimeter should read “0 VAC.”
At the breaker box, locate the breaker for the water heater. Switch the breaker bar to the off position.
Using a multimeter, check the line voltage at the water heater. The multimeter should read “0 VAC.”
1024
Step 2
- Using a Phillips #0 screwdriver, remove the access panel (or panels) to access the thermostat and element.
- Some electric water heater models may have only one access panel, located near the bottom of the tank. Some may have two— both an upper and lower access panel.
Using a Phillips #0 screwdriver, remove the access panel (or panels) to access the thermostat and element.
Some electric water heater models may have only one access panel, located near the bottom of the tank. Some may have two— both an upper and lower access panel.
Step 3
- Set aside the access panel cover and screws. Remove the insulation to expose the wires, thermostat, and element.
- Disconnect the wiring from the electrical components in the panel.
Set aside the access panel cover and screws. Remove the insulation to expose the wires, thermostat, and element.
Disconnect the wiring from the electrical components in the panel.
Step 4
Draining the tank
- Attach a hose to the drain valve located at the bottom of the tank, near the lower access panel. Place the other end of the hose in a safe location for the water to drain.
- Open the drain valve on the water heater by turning it counter-clockwise.
- Once you have a steady flow of water coming out of the hose, slowly close the cold water valve to the water heater by turning it clockwise.
- If the water flow slows down, you can open a sink or tub faucet to help the tank drain quicker.
Attach a hose to the drain valve located at the bottom of the tank, near the lower access panel. Place the other end of the hose in a safe location for the water to drain.
Open the drain valve on the water heater by turning it counter-clockwise.
Once you have a steady flow of water coming out of the hose, slowly close the cold water valve to the water heater by turning it clockwise.
If the water flow slows down, you can open a sink or tub faucet to help the tank drain quicker.
Step 5
- Using adjustable pliers, disconnect the water lines from the tank.
- If the lines are glued in place, you will need to use a steel wire saw to disconnect the water line.
Using adjustable pliers, disconnect the water lines from the tank.
If the lines are glued in place, you will need to use a steel wire saw to disconnect the water line.
Step 6
- Using a pipe wrench, detach all remaining pipes from the tank.
Using a pipe wrench, detach all remaining pipes from the tank.
Step 7
- Remove the water tank.
- The tank will have sediment and some water in it. It will be heavy and require at least 2 people to move it safely.
- To install a new water heater, follow the manufacturer’s installation instructions included with the new appliance.
Remove the water tank.
The tank will have sediment and some water in it. It will be heavy and require at least 2 people to move it safely.
To install a new water heater, follow the manufacturer’s installation instructions included with the new appliance.
To install a new water heater, follow the manufacturer’s installation instructions provided with the new water heater.
Cancel: I did not complete this guide.
2 other people completed this guide.
Author
with 7 other contributors
Lindsay Martin
Member since: 09/20/2017
178 Reputation
1 Guide authored
Badges:
5
+2 more badges
Team
Pasco Hernando, Team S4-G11, Prince Winter 2017
Member of Pasco Hernando, Team S4-G11, Prince Winter 2017
PHSC-PRINCE-W17S4G11
1 Member
1 Guide authored