How to Replace an Anode Rod

TECHNICAL SERVICE DEPARTMENT
Technical Service Bulletin
1-800-432-8373
Anode Rods, Cathodic Protection and the Porcelain (glass) Lining
Technical Competence, Product Confidence
Page 3 of 5
1201.DOC
How to Replace an Anode Rod
! CAUTION: Draining your water heater for this procedure may put you at risk of being
scalded by hot water. Please be careful when working on your water heater. If you are not
comfortable with this procedure, call the services of a licensed plumbing contractor. Certain
portions of this procedure may need to be performed to local codes. If you are not familiar
with those codes, call the services of a licensed plumbing contractor.
The anode rod on some water heaters are not accessible. They include the heat pump water heater, point of use
water heaters of 20 gallons or less, residential direct vent water heaters and the DVX models made for manufactured
housing. If you are not sure if the anode rod on your water heater is accessible, please call technical support at 800-
432-8373.
These instructions will walk you thru the replacement of an anode rod in a residential gas or electric water heater.
Make sure you turn off all power to the water heater before you start the procedure.
Once completed, make sure
you check for leaks at the anode rod threads; and check again 24 hours later.
You will need the following tools:
1-1/16 inch socket
Ratchet
24” cheater bar or pipe
Flat Blade Screwdriver
Teflon tape or pipe dope
If you need assistance anytime during this repair, call our dedicated technical support line at 800-432-8373 M-F 8
am to 5 pm central time.
1. Turn water heater off at the circuit breaker or gas supply.
2. Turn off the cold water inlet valve or isolation valve.