Instructions

7
MAINTENANCE
1. Inspect the filter at regular intervals for dirt build-up on the element. How often the filter
needs cleaning will depend upon the environment and the location of the air intake
terminal.
2. To inspect the filter, turn off the water heater and loosen the clamps on the flexible pipe
connector boot connecting the filter pipe to the intake vent pipe. Pull apart the filter pipe
from the air intake pipe. Remove the filter.
3. Hold the filter element up to the light and inspect the screen for clogging from dirt and
debris. The filter element may be vacuumed or washed in warm soapy water. If the filter
is deformed, does not clean easily, or has holes, replace the element. Dry the filter
element before reinstalling.
4. Reinstall the filter pipe with the arrow pointed toward the water heater (direction of intake
air flow). Reattach the flexible pipe connector and tighten the clamps.
5. Turn on the water heater and verify proper operation.
CAUTION!
THE FILTER WILL REQUIRE PERIODIC INSPECTION, CLEANING, OR
REPLACEMENT FOR PROPER OPERATION OF THE WATER HEATER. FAILURE
TO CLEAN OR REPLACE A DIRTY FILTER WILL CAUSE THE WATER HEATER TO
MALFUNCTION AND MAY DAMAGE COMPONENTS. INSPECT AND CLEAN AT
REGULAR INTERVALS.