To reduce the risk of severe injury, illness, death, and/or property damage, read and follow all instructions. Use only MAYTAG Whole Home Water Filtration System authorized parts where required to repair and service the MAYTAG Whole Home Water Filtration System.
Save enough water for cleaning the External Prefilter Housing prior to beginning this procedure.
Shut off water
Relieve pressure in System for 1 minute
Drain filter
1.Close inlet ball valve (refer to Inlet valve as indicated in Photo 1 on page 6) and/or switch ‘off’ pump upstream of the filter. (The house will be without water during this operation.)
2.Close outlet ball valve on MAYTAG Whole Home Water Filtration System. (See Outlet Valve as indicated in Photo 1.)
3.Relieve pressure by activating the manual flush function on the controller of the MAYTAG Whole Home Water Filtration System for 1 minute.
Note: This step must be followed to avoid personal injury and damage to the System.
Base controller (Models MWF4100AWS and MWF4200AWS) and Advanced controller (Model MWF4300AWS)
Press the Next button once until the ‘Manual’ indicator flashes. Press and hold the Manual Flush button for 10 seconds. This will open the drain valve and hold the drain valve open for 5 minutes. You may hear water flowing down the
drain as the valve opens. You may toggle the valve closed at any time during the flush by pressing the Manual Flush button once. Press the Manual Flush button after 1 minute to close the valve and avoid draining the System for this step.
4.Drain External Sediment Filter housing by opening stopcock on the bottom. Water may be drained directly
into a container or through a ¼” plastic hose attached to the stopcock. Press and hold the red button on the top of the housing to allow air to enter the housing and drain more quickly.
Stopcock
MAYTAG Whole Home Water Filtration System Owners Manual
November 2003
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