How to Replace 2188830 Compressor Start Relay & Overload on Whirlpool Refrigerator — Step-by-Step

Your Whirlpool refrigerator's compressor clicked three times last night, then went silent. This morning, your milk is warm and everything in the freezer is soft. If the compressor hums briefly then shuts off — or just clicks without starting — you're looking at a failed start relay and overload protector. These two components work together to kickstart your compressor, and when they fail, your entire cooling system stops working.

The 2188830 is the combined start relay and overload assembly used across dozens of Whirlpool, KitchenAid, and Kenmore side-by-side and bottom-freezer models, including GS6SHAXKS01, ED5VHGXMQ10, and ED5FHGXKQ02. It's a straightforward replacement that doesn't require refrigerant handling or electrical expertise.

What You Need Before Starting

• 1/4-inch nut driver or socket wrench
• Needle-nose pliers
• Flashlight
• Work gloves (the compressor area gets greasy)
• Towel or cardboard to kneel on

Repair Time: 20-30 minutes
Difficulty: EASY — No soldering or refrigerant work required

Safety First

Unplug the refrigerator completely before starting. The start relay connects directly to live voltage, and you'll be working near capacitor terminals that can hold a charge. Don't skip this step. If your fridge is built-in and the plug isn't accessible, flip the dedicated circuit breaker at your electrical panel. Wait five minutes after disconnecting power to let any stored charge dissipate.

Step 1: Access the Compressor Compartment

Pull your refrigerator away from the wall — you'll need about three feet of clearance. The compressor lives in the lower rear section, behind a metal panel. Most Whirlpool models use two 1/4-inch hex screws at the bottom corners of this panel. Remove them and lift the panel off its mounting tabs. You'll see the black compressor dome, the condenser coils, and a small black component plugged onto the compressor's side terminals — that's your start relay and overload assembly.

Step 2: Disconnect the Wire Harness

The relay has a wire connector on top — usually a white or gray plastic plug. Press the release tab and pull straight up to disconnect it. Don't yank the wires themselves. If it's stuck from years of heat and vibration, wiggle it gently while pulling. Take a quick photo with your phone before disconnecting — it's a simple two- or three-wire connection, but the photo gives you reference if you need it.

Step 3: Remove the Failed Start Relay

The relay plugs directly onto two or three flat terminals sticking out from the compressor housing. Grab it firmly and pull straight off. It might resist — corrosion and heat cycles create a tight fit. Rock it gently side to side while pulling if needed. Once it's off, inspect the compressor terminals. If they're corroded or pitted, wipe them with a clean rag. Light surface oxidation is normal and won't affect the new relay's connection.

Step 4: Install the New 2188830 Relay

Check the terminal arrangement on your new relay — it only fits one way. The female terminals inside the relay housing correspond to the male terminals on the compressor. Line them up and push firmly until the relay seats completely. You should feel it click or bottom out against the compressor body. If it stops halfway, you've got it crooked — pull it off and try again. A loose connection here causes immediate failure.

Step 5: Reconnect Power and Test

Plug the wire harness back onto the relay's top connector until it clicks. Reinstall the lower access panel with its two screws. Plug the refrigerator back in (or flip the breaker on). Within 30 seconds, you should hear the compressor start with a low hum — not a click-click-click pattern. Let it run for ten minutes, then check if the freezer's getting cold. Put your hand on the condenser coils behind the panel area — they should be warm, meaning refrigerant is circulating.

Testing After Installation

Give your fridge 4-6 hours to return to proper temperature. The freezer should hit 0°F, and the fresh food section should reach 37°F. If the compressor starts but the fridge stays warm, you've got a different problem — possibly a failed compressor itself or a refrigerant leak. But if the compressor wasn't running at all before and now it's humming steadily, your relay replacement fixed it.

One common issue after relay replacement: the compressor runs but doesn't cycle off. That's actually the overload portion of your new assembly doing its job during the initial cooldown. It'll cycle normally once temperatures stabilize. If it's still running non-stop after 12 hours, check your door seals and thermostat settings.

Frequently Asked Questions

How do I know if the start relay is bad or if my compressor is dead?

Test this way: with power on, listen at the compressor. If you hear rapid clicking every few seconds, the relay's trying to start a working compressor but failing — replace the relay. If you hear nothing at all, or a loud hum followed by a click and silence, test the compressor windings with a multimeter. If the compressor's start and run windings show continuity and the relay is still clicking, the relay is your problem. Dead compressors usually show open windings or a grounded circuit.

Can I use 2188830 if my refrigerator originally had a different part number?

Yes, if it's listed as compatible. The 2188830 replaces older numbers like AP3885081, PS993073, 2220475, and 8201786. Whirlpool updated the design but maintained backward compatibility across model lines. Check your refrigerator's model number against the compatibility list — if it's there, this relay will work. The terminal configuration and overload specs match your original equipment.

Why did my start relay fail in the first place?

Heat kills these components. Every time your compressor cycles on, the relay sends a high-current jolt to the start winding. After thousands of cycles over 5-8 years, the internal contacts pit and the overload's bimetallic disc weakens. If your condenser coils are clogged with dust, the compressor runs hotter and the relay dies faster. Clean those coils yearly with a vacuum and brush — it's cheap insurance against premature failures.

What if the new relay gets hot during operation?

Some warmth is normal — the relay handles significant current during compressor startup. But if it's too hot to touch after 30 minutes of runtime, something's wrong. Either the compressor is drawing excessive current (meaning it's failing mechanically), or you've got a bad connection at the terminals. Unplug everything, check that the relay is fully seated, and verify the wire harness connector is locked in place. If it still overheats, test the compressor's amp draw with a clamp meter.