Section X: Maintenance - Bradford White UCG100H199 Installation & Operation Manual

DO NOT attempt to repair gas valve.
DO NOT attempt to repair ignition module.
DO NOT attempt to repair venturi.
DO NOT attempt to repair thermostat board.
DO NOT attempt to repair transformer.
DO NOT attempt to repair flow switch.
To avoid damage or injury, there must be no materials stored against the water heater or vent-air intake
system, and proper care must be taken to avoid unnecessary contact (especially by children) with the water
heater and vent-air intake system. UNDER NO CIRCUMSTANCES SHOULD FLAMMABLE MATERIALS,
SUCH AS GASOLINE OR PAINT THINNER BE USED OR STORED IN THE VICINITY OF THIS WATER
HEATER, VENT-AIR INTAKE SYSTEM OR IN ANY LOCATION FROM WHICH FUMES COULD REACH
THE WATER HEATER OR VENT-AIR INTAKE SYSTEM.
KEEP APPLIANCE AREA CLEAR AND FREE FROM COMBUSTIBLE MATERIALS, GASOLINE AND
OTHER FLAMMABLE VAPORS AND LIQUIDS.
General
Water heater maintenance includes monthly tank flushing, cleaning, and removal of lime scale. The unit should
be inspected and adjusted to maintain proper combustion. Refer to Table 7-Suggested Maintenance Schedule
(page 36). An annual inspection of the venting system should be made.
Burner Flame Check
At the time of installation and at monthly intervals, a visual check of the burner flames should be made to
determine if they are burning properly. The main burner may be seen through the sight glass window on the
side of the combustion insert mounting bracket (see Figure 17). The burner flames should be a blue flame near
the burner surface in a uniform flame pattern. Occasional yellow or white streaks are normal.

SECTION X: MAINTENANCE

DANGER
WARNING
WARNING
Figure 17 – Sight Glass Location
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