LAARS U.H.E. - Service Manual - Manual (Page 37)

U.H.E Service Manual Page 37
Vent Safety Switch Replacement Procedure
Step 1. Position main power switch to “OFF”.
Step 2. Loosen adhesive backed rubber escutcheon from service panel access cover
and slide escutcheon back along exhaust pipe to allow for removal of cover
(see photos at right).
Step 3. Remove screws from service panel access cover
(¼" nut driver) and remove cover from heater
(see photos at right)
Step 4. Disconnect wire leads from vent
safety switch (see photo at right).
Step 5. Remove the 2 switch mounting
screws (Phillips screw driver)
and nuts (5/16 wrench) and
remove switch from heater.
Step 6. Install new switch using screws
from step 5.
Step 7. Reconnect wire leads.
Note: wire leads are
interchangeable with either
switch terminal.
Step 9. Reinstall service panel access cover and
rubber escutcheon.
Step 8. Restore 120 volt power supply to water heater and confirm proper operation following the lighting
instructions on the lighting instruction label or the lighting instruction located in the installation and
operating instruction manual.
Rubber
escutcheon
Vent safety
switch
37