Vent safety switch replacement procedure – LAARS U.H.E. - Service Manual User 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