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SERVICE PROCEDURES
Filter/Drain Plugs
Cleaning
WARNING
Water drained from the water heater
may be hot and could cause severe
burns. Failure to observe proper
safety practices could lead to serious
personal injury.
1. Close the manual gas shut off valve.
2. Wait 30 seconds, then turn OFF
power to the unit again.
3. Close the cold water shutoff valve.
4. Open nearby hot water faucets. When
the water flow stops, close all hot
water faucets.
5. Place a bucket or pan under the water
filter/drain plug to catch the water
when it drains. You may also drain the
water to the outdoors.
6. Remove the water filter drain plugs
and the water filter.
Figure 8: Drain plug removal.
7. Clean the filter. With a small brush,
clean the water filter of any debris
which may have accumulated. (See
Figure 9). When the filter is clean,
reinstall it.
Figure 9: Cleaning the filters.
NOTICE: The filter strainer basket can
be separated from the filter threads.
When separated, be sure that the
O-ring is not lost and is in place before
you reinstall the filter.
On-Demand Water Heater Service Handbook for X3P Models
8. Replace all plugs and close all drain
valves.
NOTICE: Drain plugs must be hand
tightened only.
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