Maytag MWF4200AWS Technical Information download pdf (Page 102)

6-11

67500003 External Prefilter Kit v

67500004 External Prefilter

Replacement

Cartridge

67500025 External Prefilter

Wrench

67500026 External Prefilter O-

Ring

67500005 Base Controller v v

67500006 Advanced Controller v

67500011 Cap v v v

67500012 Lockring v v v

67500013 Backpulse Tank v v v

67500014 Base v v v

67500015 Inlet or Outlet Pipe

Assembly

v v

v (Inlet for

MWF4300AWS

may also require

solenoid N.O.)

67500016 Drain Pipe Assembly v v v

67500017 Installation Sub

Assembly Kit (inlet,

outlet, drain, air vent)

v v

v (Inlet for

MWF4300AWS

may also require

solenoid N.O.)

67500018 Solenoid Valve NC v v v

67500019 Solenoid Valve NO v

67500027 Check valve v

67500020 Hex Elbow,

¾”Mx5/8” Hose Barb

v v v

67500021 Air Vent Valve,

automatic float, duo

vent

v v v

67500022 Integrity Tester v v v

67500009 O-Ring Lube – NSF

Certified

v v v

67500023 Pressure Test Gauge

Assembly

v v v

67500024 MAYTAG MC1

Cleaning Solution

v v v

6.3.2 Replacement Procedures

There are two situations that require the MAYTAG Whole Home Water Filtration System to be replaced:

Situation #1 - System Fouling - Under conditions of normal use, the System becomes fouled or plugged

with dirt and debris that built up and could not be flushed from the System. System fouling causes the

household water flow and pressure to drop. The homeowner will notice this and request its replacement.

When the System is fouled, bacteria, viruses and parasites will be rejected just as effectively as

when the System is clean.

Situation #2 - Failed Integrity Test – The System may become damaged from misuse, foreign debris, or

other unusual operating circumstances. If this does occur, the Integrity Tester will diagnose this as a

problem and the System will require replacing.

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