Bradford White EF Series Service Manual page 37

Intake Pressure Switch Replacement Procedure
Step 1. Position main power switch to "OFF".
Step 2. Disconnect (Unplug) water heater
from 120 Volt power source.
Step 3. Un-latch & remove surround cover from top of water heater.
Step 4. Locate intake pressure switch on control panel inside surround area (see photo 32).
Step 5. Disconnect red wire leads from pressure switch
(see photo 33).
Step 6. Disconnect silicone tubing from pressure switch (see photo 33).
Step 7. Remove the two screws (Phillips screw driver) holding the intake pressure switch in
place and remove pressure switch from control panel (see photo 33).
Step 8. Install new pressure switch and secure in place with screws from step 7.
Step 9. Reconnect silicone tubing (from step 6) to pressure
Step 10. Reconnect red wires (from step 5) to pressure switch. Note: wires are interchangeable
with either switch terminal.
Step 11. Restore 120 volt power supply to heater & verify proper heater operation following the
instructions on the lighting instruction label or the lighting instructions located in the
installation & operation manual.
Step 12. Replace surround cover on top of heater.
Service Procedure EF-XI
Intake Pressure Switch Testing and Replacement
32
Disconnect red wires
120 volt potential exposure. Isolate the
appliance and reconfirm power is
disconnected using a multi-meter.
Intake pressure switch
located on side of
control panel
Step 5
WARNING
Step 6
Disconnect tubing from
pressure switch
33
Remove 2
mounting screws
switch.
Step 7
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