Quick Answer
Replace your Frigidaire PurePour PW1 filter every six months or when the status light turns red to maintain water flow. This push-to-lock filter is typically located in the upper right corner or inside the door of newer French Door and Side-by-Side models.
Most of the time when I show up for a slow dispenser call on a Frigidaire, it's the PW1 filter, not a pump or valve. Even a brand-new filter causes problems if it's not seated right. Ignore it long enough and you're not just drinking unfiltered water, you're also stressing the inlet valve, which runs $60-80 to replace. Don't let a $40 filter turn into a $200 service call.
FrigidaireRefrigeratorSeverity: low
What Does the PW1-FILTER Code Mean?
OK so the PW1 is honestly one of the easier fixes on a Frigidaire, but it trips people up because the push-to-lock mechanism feels weird if you haven't done it before. I replaced three of these last Tuesday alone. Cost is around $35-50 for a genuine filter and you don't need any special tools. The tricky part is that 'almost clicked' situation where the filter sits 90% in but the valve never opens and you've got zero flow.
Most Likely Causes
Based on aggregated repair data, here is the probability breakdown for this error code:
Can you reset a Frigidaire refrigerator to clear the PW1-FILTER code?
Locate the Water Filter button on the main display panel. Press and hold this button for exactly three seconds. You will see the status light flash or turn green to confirm the reset. On some models, you may need to navigate through the 'Options' menu to find the filter reset toggle.
Why is my water dispenser slow after changing the PW1 filter?
Almost always it's one of two things: air trapped in the line, or the filter isn't fully seated. If you didn't flush three gallons after installing it, start there. Just run the dispenser continuously for a couple minutes. If it's still slow after flushing, pull the filter out and push it back in harder until you actually hear the click. If you're sure you got the click and flushed it and it's still slow, check the water supply valve behind the fridge and make sure it's fully open. Also check that the supply line isn't kinked from when you last moved the unit.
Can I use a generic PW1 filter instead of the Frigidaire brand?
You can, but be careful. I've installed a bunch of aftermarket PW1 filters and some work fine, others cause headaches. The main issue is O-ring diameter tolerance. If it's even slightly off, you get a slow drip around the housing or the bypass valve doesn't open fully. The genuine Frigidaire filter, part number FPPWFU01, fits the manifold exactly. If you do go generic, stick to NSF/ANSI 42 and 53 certified options and check reviews specifically mentioning your model number, not just 'PW1 compatible.' And keep your receipt if it starts leaking.
How do I know if I have a PW1 or a different Frigidaire filter?
Look at the filter itself. The PW1, also sold as FPPWFU01, is a long slim cylinder, around 10-12 inches, with the O-rings near one end. If yours is shorter and fatter, you've got a different filter family. Frigidaire also uses the PureSource Ultra II (part WF3CB) and the older PureSource 3. The easiest way to confirm is to check your model number on Frigidaire's website filter lookup, or just look at what's currently in the housing and read the label on the filter itself. It'll say PW1 or FPPWFU01 right on it.
Why does my water taste like plastic after a new filter install?
That's carbon fines, not plastic. Every new carbon block filter ships with loose carbon particles inside and you've gotta flush them out. Three gallons minimum, honestly closer to four if the taste is really strong. It's harmless but tastes awful. If you're still getting a weird taste after five gallons, check that your supply line isn't a very old polybutylene pipe, because those can leach taste. Also make sure the filter is genuine and not a knockoff, because I've seen cheap filters that never stopped tasting weird no matter how much you flushed them.
What happens if I don't change the PW1 filter for a year?
A couple things. First, the carbon stops removing contaminants effectively around six months, so you're basically drinking unfiltered tap water after that point. Second, sediment builds up and restricts flow, which makes your water inlet valve work harder than it was designed to. I've seen inlet valves fail way early on refrigerators with neglected filters. That's a $60-80 part plus labor versus a $35-50 filter you swap out yourself. Third, the status light goes red at six months for a reason. Don't ignore it.
My filter light won't reset. What's wrong?
Hold the Water Filter button for a full five seconds, not three. Some models need the longer hold and three seconds just isn't enough. If it still won't reset, try unplugging the fridge for 60 seconds and plugging it back in, then try the reset again. On touchscreen models you might be pressing the wrong spot. Look for a 'Filter Reset' option inside your Settings or Options menu rather than a physical button. If none of that works the control board might have a glitch, but that's pretty rare on these units. Usually it's just not holding long enough.
Models Known to Experience PW1-FILTER Errors
This repair applies to most Frigidaire refrigerators with this error code. Common model numbers include:
FGHB2868TF, FGHS2631PF, FFHB2750TS, FGHC2331PF, FGHD2368TF, FGSS2635TE, FPHB2899LF
Last verified for technical accuracy on March 17, 2026