Bradford White UPDX2-75T6FRN - Manual (Page 20)

Pressure Switch Replacement
WARNING
115 volt potential exposure. Use caution
to avoid personal injury.
Step 6. Reconnect wires from step 5 to new pressure switch.
Step 7. Reconnect tubing to new pressure switch.
Step 8. Carefully position pressure switch into blower housing.
Step 9. Position gas control power switch to “ON” position and verify proper heater operation.
Step 10. Replace control access cover from step 2.
Step 1. Position gas control power switch
to the “OFF” position.
Step 2. Remove the three screws
(Phillips screw driver) from
control access cover on blower
assembly and remove cover
(see photo 5 and 6).
Pressure Switch
Slide pressure switch in direction of
arrow while tilting slightly away
from blower housing.
Step 3. Carefully remove pressure
switch from blower
housing (see photo 7).
Step 4. Disconnect tubing from
pressure switch
(see photo 8).
Step 5. Disconnect yellow wires
from pressure switch
(see photo 9).
UPDX SERVICE PROCEDURE III
Pressure Switch Testing and
Replacement
Page 20
6
7
8
9
UPDX Series
Gas Control shown in the
“OFF” Position
5
Control Access
Cover Screws
Control Access
Cover
Tubing
Yellow Wires
20