How to Install a Maytag Dryer 4-Prong Power Cord
Fitting a 4-prong cord to a Maytag electric dryer is a 15 to 20-minute beginner job at the terminal block. The step people miss is removing the neutral-to-chassis ground strap, which must come out on a 4-prong install.
Why 4-prong is different#
A 3-prong cord shares neutral and ground on one conductor, while a 4-prong cord separates them into two hots (L1 and L2), a neutral, and a dedicated ground, so the dryer chassis is grounded independently of the neutral return. That is safer, and it is code for new installs, which is exactly why the ground strap that ties neutral to the chassis on a 3-prong setup has to be removed.
Before you start#
| Category | What you need |
|---|---|
| Tools | Phillips #2 screwdriver, 5/16-inch or 3/8-inch nut driver, flathead screwdriver |
| Part | 4-prong cord (NEMA 14-30, 30-amp, 10-gauge) with a strain-relief clamp |
| Time and level | 15 to 20 minutes, Beginner |
Safety warning: The dryer must be completely unplugged from the outlet before beginning. Never work on the terminal block with any power source connected. 240 volts is lethal.
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Step-by-step#
1 - Open the terminal block. Remove the small cover plate at the lower rear (1 or 2 screws). Behind it is the terminal block with three posts, usually L1, neutral, L2 left to right, and a green ground screw on the chassis.
2 - Remove the old cord. Loosen the strain-relief clamp at the cabinet entry, back off the three terminal nuts, and pull the old cord's wires free.
3 - Remove the ground strap. Find the short strap or wire tying the center neutral post to the green chassis ground screw and take it out. On a 4-prong cord neutral and ground are separate, so leaving the strap in would bond neutral to the chassis and defeat the whole point. Keep the strap with your paperwork in case you ever convert back.
4 - Wire the 4-prong cord. Land each wire under its nut and tighten snug, with no bare conductor showing past the terminal: red to the LEFT post (L1), black to the RIGHT post (L2), white to the CENTER post (neutral), and green to the chassis ground screw.
5 - Set the strain relief. Thread the cord through the strain-relief clamp at the entry hole and tighten it so the cord cannot pull free with a moderate tug, which keeps the connections from being stressed if the dryer is moved.
6 - Verify and close up. Double-check red LEFT, black RIGHT, white CENTER, green to chassis, the strap removed, and no wire touching another or the cabinet, then refit the cover plate.
7 - Test. Plug in with all four prongs seated and run a brief timed cycle to confirm heat, which proves both hot legs are connected, since only one connected hot leaves the motor running but the heater cold. If you want to check the outlet, each hot slot to ground should read about 120 volts and the two hots to each other about 240 volts.
Common mistakes#
- Leaving the ground strap in is the number-one error; it must come out with a 4-prong cord.
- Swapping neutral and ground: white goes to the center post, green to the chassis screw.
- Loose nuts: a loose terminal heats up and can melt the block, so keep them snug.
- Wrong gauge: use a 10-gauge, 30-amp cord regardless of length.
Safety First — Know the Risks
Gas dryers carry carbon monoxide and explosion risk. Even electric dryers involve 240V circuits that can deliver a fatal shock. Our techs are licensed and insured — let them handle the risk.
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When to call an electrician#
The cord swap itself is homeowner work, but the outlet is not always. Bring in an electrician if the outlet shows heat damage or a burning smell, if you are not sure the 240-volt circuit actually has a separate neutral and ground back at the panel, or if you need a brand-new outlet installed, since running a new circuit is permitted electrical work in most areas and is not something to improvise.
Appliance Repair Technician · 11 years experience
Experienced technician with 11 years specializing in Frigidaire and Electrolux refrigerator and dryer repair with a focus on safety.
