Frigidaire FF-series disposers (FF03DISPC1, FF05DISPC1, FF75DISPC1, FF75DISPB1, FF13DISPC1): quick sheet

Covers: Current Frigidaire-branded corded disposers: FF03DISPC1 (1/3 HP), FF05DISPC1 (1/2 HP), FF75DISPC1 (3/4 HP continuous), FF75DISPB1 (3/4 HP batch feed) and FF13DISPC1 (top of the line; listed as 1.25 HP by some sellers and 1 HP by others). Older Frigidaire Gallery FFDI / FGDI models (for example FGDI753DMS) are a different, discontinued generation; read the label.

Single sourceBrands: Frigidaire3 components

Frigidaire's own line of disposers sold through appliance dealers and big-box stores, all corded and using a 3-bolt style mount per retailer data. Calls are the same as any disposer: jams, a tripped reset, leaks and a dishwasher that stops draining after install. Who builds them is not stated in the sources found, so do not assume parts interchange with another brand. Deep diagnostics: see the continuous-feed and batch-feed disposal field service manuals.

Safety first

Never reach into the chamber; power off and unplug first.

How it works

C1 suffix = continuous feed (runs from a wall or air switch). B1 suffix = batch feed (runs only with the stopper/cover locked in the drain).

Higher-HP models run faster motors (about 2,600 RPM on the 1/2 HP, about 2,700 RPM on the 3/4 HP, about 2,800 RPM on the top model per retailer listings) with stainless grind parts.

Retailer data lists a 3-bolt mount on the FF75DISPC1 and FF13DISPC1; confirm on the box or install guide before planning to reuse an existing 3-bolt flange.

Components & tests

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work. © 2026 OnCall Tech. Original content; not a reproduction of any manufacturer document.Generic part photos (not of this brand): Inside a worn garbage disposal: rusty grinding plate and lugs seen from the sink by Rthardin, CC BY-SA 3.0

Diagnostic guides for this appliance

Guide · Garbage Disposal

Water spurts from the dishwasher air gap at the sink (blocked disposal inlet, knockout plug, hose)

The air gap is doing its job: when the path from the air gap to the disposal or sink tailpiece is blocked, the water exits at the sink instead of flowing back into the dishwasher. The blockage is almost always downstream: a knockout plug never removed from a new disposal's dishwasher inlet, food packed in the disposal inlet or the hose, a kinked or collapsed hose, or debris inside the air gap itself.

5 steps ~30 mineasy

Guide · Garbage Disposal

Disposal sink-top air switch (push button) not working

An air switch sends a puff of air down a small tube to a power module under the sink, which toggles the outlet the disposal plugs into. Check the disposal itself first, then the tube, the button and the module. Some InSinkErator single-outlet SinkTop Switch modules (2005-2017) were recalled for water entry and overheating.

6 steps ~30 mineasy

Guide · Garbage Disposal

Installing a sink-top air switch for a garbage disposal (button, air tube and power module)

An air switch uses a push button on the sink deck or counter that sends a puff of air down a plastic tube to a power module under the sink. The disposal plugs into the module; each press toggles it on or off. Nothing electrical is on the counter. The module plugs into a grounded 120 V outlet that is always on (not switched). The button fits a standard sink hole or a 1-1/4 in hole drilled in the counter. Dual-outlet modules (used when an instant hot water tank shares the sink) have their own rules for which outlet is switched; read the kit sheet.

5 steps ~40 mineasy

Other garbage disposals manuals

Manual · Garbage Disposal

InSinkErator Badger series disposals: quick sheet

Badger-branded continuous-feed disposals: Badger 1 / Badger 100 (1/3 HP), Badger 5 / Badger 500 (1/2 HP), Badger 5XP (3/4 HP), with or without factory cord (W/C suffix = with cord). Production years vary; read the model and date code on the unit's label.

9 components5 common failuresInSinkErator

Manual · Garbage Disposal

InSinkErator Evolution / Advanced series disposals: quick sheet

Evolution-branded continuous-feed units: older Evolution Excel (1 HP, 3-stage), Evolution Septic Assist (3/4 HP, 2-stage) and the current Advanced Series Evolution 35SS (5/8 HP), 45SS (3/4 HP) and 55SS (1 HP). Confirm the exact model from the label; many older Evolution SKUs are discontinued.

8 components5 common failuresInSinkErator

Manual · Garbage Disposal

Waste King, Whirlaway and Moen disposals (Anaheim-built): quick sheet

Continuous-feed disposals from Anaheim Manufacturing (a Moen subsidiary): Waste King Legend / Pro / Custom, Whirlaway, and Moen GX / GX Pro series. Mount type (EZ Mount vs 3-bolt) and motor speed vary by model; read the label.

7 components5 common failuresWaste King, Whirlaway, Moen