FILTER CARTRIDGE REPLACEMENT
• Note differences between WH-HD100-O and WH-HD200-C.
1 WH-HD100-O
OPEN
Turn off water supply to filter.
Press red pressure-relief button to relieve
pressure. Unscrew bottom of housing. Remove
O-Ring from groove in housing and wipe clean
and set aside. Discard used cartridge.
Rinse out housing and fill 1/3 with water.
Add 2 tablespoons of bleach and scrub with
nonabrasive brush or sponge. Rinse thoroughly.
2
Lubricate O-Ring with a coating of clean
food-grade silicone grease. Insert O-Ring back
into groove and smooth into place with finger.
NOTE: This step is important to ensure proper
housing seal. Make certain O-Ring is seated
level in the groove.
Insert new cartridge into housing.
Make certain it slips over the standpipe
at the bottom of the housing.
1
WH-HD200-C
OPEN
Turn water off by rotating bypass valve to
"Off" or "Bypass."
NOTE: Turning bypass to "Off" will shut off all
water flow within the household.
Press red pressure-relief button to relieve
pressure. Unscrew bottom of housing. Remove
O-Ring from groove in housing and wipe clean
and set aside. Discard used cartridge.
Rinse out housing and fill 1/3 with water.
Add 2 tablespoons of bleach and scrub with
nonabrasive brush or sponge. Rinse thoroughly.
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3 WH-HD100-O
CLOSE
Screw the bottom of housing onto the cap until
tight. DO NOT OVER-TIGHTEN. Make certain
standpipe in filter head slips into cartridge.
Turn on water supply slowly to allow filter to fill
with water. Slowly press red pressure-relief
button to release trapped air. Check for leaks.
NOTE: Flush filter cartridge for 5 minutes
before use.
TIMER APPLICATION INSTRUCTIONS
AND BATTERY REPLACEMENT (WH-HD200-C MODEL)
APPLICATION AND RESET
After new battery is installed or filter is changed, push and hold the filter life reset button for
approximately 2 seconds until green light flashes. The light will flash red in 90 days to remind you that it
is time to change the filter.
BATTERY REPLACEMENT
1. Insert small screwdriver on the base of the indicator holder to remove it from the housing.
2. Insert small screwdriver on the bottom flat side of the filter life indicator. Gently pry open and separate
timer base from cap.
3. Carefully remove the circuit board and slide old battery out of holder. Change battery (#2032).
4. Carefully line up and place circuit board back into housing.
5. Line up the base and cap and snap back together. Place indicator back into housing.
6. Reset filter life indicator to start timer (hold reset button for 2 seconds). It is recommended that you
change the battery every year to ensure your indicator works properly.
3
WH-HD200-C
CLOSE
Screw the bottom of housing onto the cap until
tight. DO NOT OVER-TIGHTEN. Make certain
standpipe in filter head slips into cartridge.
Slowly turn bypass valve to "Filter" to allow
system to fill with water. Slowly press red
pressure-relief button to release trapped air.
Check for leaks.
Reset filter life indicator (hold reset button for
2 seconds).
NOTE: Flush filter cartridge for 5 minutes
before use.
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