16
UPV Series
16
Burner Inspection
At periodic intervals (every 6 months) a visual inspection should be made of the pilot and main
burner for proper operation and to assure no debris is accumulating.
Pilot flame should be stable, some causes for an unstable pilot flame are:
a) Water heater vent is less than the allowable vent length.
b) Gas pressure is out of specification.
c) Pilot flame not fully engulfing spark/flame sensor.
Main burner should light smoothly from pilot and
burn with a blue flame with a minimum of yellow
tips. Main burner must be free from any debris
accumulation that may affect burner operation.
Burner Cleaning
Step 1. Position the gas control power
switch to the “OFF” position and
unplug the heater from the wall
outlet.
Step 2. Turn off gas supply to the water
heater.
Step 3. Remove outer jacket door.
Step 4. Disconnect pilot tube (
7
/
16
” wrench)
and feedline (¾” wrench) from gas
control.
Step 5. Disconnect igniter/flame sensor
wire from gas control.
Step 6. Remove the (4) ¼” hex drive
screws holding the right side inner
door in place.
Step 7. Remove the (3) ¼” hex drive
screws holding the left side burner
door in place.
Step 8. Remove burner assembly from
combustion chamber.
