Operating instructions
20
Cavity Insert Instructions
The following instructions are intended for 
qualified service personnel ONLY, and should only 
be done when necessary.
In order to replace the thermostat or heating element, 
remove the cavity insert crossbar by following the 
instructions below:
  Turn off the power to the water heater.
 Remove the jacket access panel(s) and insulation. 
 Rotate the crossbar up and down until it breaks away 
from the remainder of the cavity insert. 
(See illustration to the left)
 Discard the crossbar. It cannot and need not be 
replaced.
 Replace the thermostat and/or element as necessary.
 Replace the insulation and jacket access panel(s) 
before turning on the power to the water heater.
NOTICE: The cavity insert crossbar is necessary for 
the manufacturing process only. The removal of the 
crossbar will not interfere with the operation of the 
water heater.










