GE's own article for odor in a front-load washer and its manual give a clear routine for the PFW950. Use liquid HE detergent in the right amount; too much creates suds and residue. Clean the tub once a month: on models with a BasketClean cycle use it with 1 cup of bleach or a product such as Tide Washing Machine Cleaner, and on the PFW950 use the Self Clean cycle, at least once a month or every 40 washes, with 1 cup (250 ml) of liquid bleach poured into the empty basket; it runs about 90 minutes. Use the UltraFresh Vent System with OdorBlock between uses so the gasket dries out, clean the pump filter, the dispenser drawer and the door gasket, and always remove wet items promptly.
Differential
Likely causes of “GE PFW950 front-load washer smells musty, sour or like mildew”, and how to tell them apart
- 1
Detergent and softener residue in the tub
What separates it There is a musty smell from the drum because of detergent and softener residue in the tub
How to confirm Run Self Clean monthly with 1 cup of bleach
- 2
A wet gasket and a closed door
What separates it There is a mildew smell at the gasket because of a wet gasket and a closed door
How to confirm Use UltraFresh Vent or leave the door slightly open
- 3
A dirty pump filter or drawer
What separates it A sour smell near the front bottom or drawer
How to confirm Clean the pump filter and the dispenser drawer
- 4
A drain hose pushed too far into the standpipe
What separates it There is a musty smell from siphoned water because the drain hose is pushed too far into the standpipe
How to confirm Clip the hose to the side of the standpipe
Before you touch a setting
Record this first — changing settings destroys the evidence
- Where the smell is strongest, at the drum, gasket or drain
- How often Self Clean is run
- Whether UltraFresh Vent is used after each load
Try in this order
0 of 5 completedEmpty the drum and add bleach
ReversiblePour 1 cup (250 ml) of liquid bleach or washing machine cleaner into the empty basket.
Run Self Clean
ReversibleSelect SELF CLEAN and press Start; it takes about 90 minutes, and on some models UltraFresh Vent follows automatically.
Follow with a rinse
ReversibleRun a Rinse & Spin or a light color load afterwards to clear any bleach smell.
Clean the gasket
ReversiblePress down the gasket, remove trapped objects, wipe with mild detergent, diluted bleach or diluted vinegar and rinse.
Use UltraFresh Vent
ReversibleUse UltraFresh Vent, and after removing the laundry and closing the door, press the pad when it blinks.
Model-specific
What is true of this model and not of its siblings
- UltraFresh Vent System with OdorBlock
- GE designed the system to eliminate excess moisture after a wash cycle to prevent odors: the washer drains more effectively at the end of the cycle, and the user can leave the door open or select UltraFresh Vent to dry the gasket and other areas. During it the door stays locked and the washer spins intermittently at low speed for up to 8 hours, and on Profile models a sensor decides the end time. If garments are detected in the basket the washer runs Tumble Care or 1 Step Wash + Dry instead.
- Other odor tips
- GE also says the washer should not be left with wet items in it: remove them promptly after the cycle stops or use 1 Step Wash + Dry or Tumble Care. Use only the detergent amount recommended or set SmartDispense to LOW, and only HE detergent. If you choose not to use UltraFresh Vent, leave the door slightly open so the washer can air dry, with close supervision if children are near.
- Parts for this problem on the PFW950 (RepairClinic, 2026-09-20)
- outer boot seal retaining ring, part number WH05X29663, at $7.91; drain pump assembly with housing and coin trap, part number WH11X39237, at $98.82; dispenser drawer assembly, includes housing, dra, part number WH42X29542, at $265.56.
- Other models this page answers
- These steps also fit models GFW655, GFW650, GFW550, GFW510, PFQ97, GTW840, GTW725, GTW720, GTW585, GTW525, GTW465, GTW335, GNW128.
Stop boundary
When this stops being a self-service repair
- !If the smell is burning or electrical, unplug and schedule service
- !If odor remains after two Self Clean cycles, clean the gasket and pump filter and repeat
Evidence ledger
Sources behind this answer
GE's own support articles for front-load washers, each.
GE's own support articles for these symptoms.
Parts and list prices as shown on RepairClinic's parts search for this model number on 2026-09-20.
Exact questions
Common questions
How often should I run Self Clean?+
At least once a month or about every 40 wash cycles.
How long does Self Clean take?+
About 90 minutes; do not interrupt it.
What does UltraFresh Vent do?+
It eliminates excess moisture after a wash, with the door locked and the washer spinning intermittently at low speed for up to 8 hours.
What is OdorBlock?+
Components manufactured with Microban antimicrobial technology, per GE.
Can I use vinegar on the gasket?+
GE says you may wipe the gasket with mild detergent, diluted bleach or diluted vinegar, then rinse with warm water.
What if the odor is strong?+
You may need to run Self Clean more than once.