Maytag Dryer error code
Maytag Dryer Error D4
Enter diagnostic mode and run motor test cycle—note if motor hums but won't start
Enter diagnostic mode and run motor test cycle—note if motor hums but won't start (capacitor) or remains silent (open winding).
Try these first
Start here before buying a part or taking the appliance apart.
- 1Enter diagnostic mode and run motor test cycle—note
Enter diagnostic mode and run motor test cycle—note if motor hums but won't start (capacitor) or remains silent (open winding).
- 2Unplug dryer and remove rear panel to access
Unplug dryer and remove rear panel to access motor WPW
- 3Disconnect wiring harness from motor terminals
Disconnect wiring harness from motor terminals.
A quick explanation
What does D4 mean?
Enter diagnostic mode and run motor test cycle—note if motor hums but won't start (capacitor) or remains silent (open winding).
The answer you came for
How to fix Maytag dryer error D4
Start with the safest checks and work from simple to technical.
- 1
Enter diagnostic mode and run motor test cycle—note
Enter diagnostic mode and run motor test cycle—note if motor hums but won't start (capacitor) or remains silent (open winding).
- 2
Unplug dryer and remove rear panel to access
Unplug dryer and remove rear panel to access motor WPW
- 3
Disconnect wiring harness from motor terminals
Disconnect wiring harness from motor terminals.
- 4
Set multimeter to resistance mode and test windings
Set multimeter to resistance mode and test windings: Main winding (typically terminals 1-
- 5
should read 2-6 ohms
should read 2-6 ohms; Start winding (terminals 2-
- 6
should read 4-8 ohms
should read 4-8 ohms. Infinite resistance indicates open winding—replace motor.
- 7
Test start capacitor (typically 5-8 MFD) with capacitance
Test start capacitor (typically 5-8 MFD) with capacitance meter—reading below 80% of rated value indicates weak capacitor.
- 8
If capacitor weak but windings good, replace capacitor
If capacitor weak but windings good, replace capacitor WP3392519 ($
- 9
If windings open or shorted, replace entire motor
If windings open or shorted, replace entire motor assembly WPW
- 10
During installation, verify blower wheel is securely fastened
During installation, verify blower wheel is securely fastened to motor shaft (setscrew tight).
- 11
Reconnect wiring harness ensuring correct terminal assignment per
Reconnect wiring harness ensuring correct terminal assignment per wiring diagram.
- 12
Exit diagnostic mode and run test cycle—motor should
Exit diagnostic mode and run test cycle—motor should start immediately and run smoothly without overheating.
Read the additional checks from the current guide
How to Fix Dryer Error Enter diagnostic mode and run motor test cycle—note if motor hums but won't start (capacitor) or remains silent (open winding).Unplug dryer and remove rear panel to access motor WPWDisconnect wiring harness from motor terminals.Set multimeter to resistance mode and test windings: Main winding (typically terminals 1-should read 2-6 ohms; Start winding (terminals 2-should read 4-8 ohms. Infinite resistance indicates open winding—replace motor.Test start capacitor (typically 5-8 MFD) with capacitance meter—reading below 80% of rated value indicates weak capacitor.If capacitor weak but windings good, replace capacitor WP3392519 ($.If windings open or shorted, replace entire motor assembly WPWDuring installation, verify blower wheel is securely fastened to motor shaft (setscrew tight).Reconnect wiring harness ensuring correct terminal assignment per wiring diagram.Exit diagnostic mode and run test cycle—motor should start immediately and run smoothly without overheating. As an Amazon Associate, we earn from qualifying purchases through links on this page.
Recommended part
Recommended part for this error code
Part listed in the current guide
OEM candidate: WPW10438706
Price noted in the current guide: $180
Why this part is shown: It is associated with Maytag Dryer error D4 in the current guide. The error code alone does not prove this part has failed.
Compatibility varies by model. Confirm that the Amazon listing includes your complete dryer model number before ordering.
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Repair or replace calculator
Use the age and total repair estimate to get a simple comparison. This is guidance, not a guarantee.
Safety first
Disconnect power before opening panels or touching internal parts.
When to stop
- Stop if you see burned wiring, melted connectors, water near electrical parts, or a gas smell.
- Do not perform live-voltage testing unless you are trained and equipped for it.
- Use the exact model manual or service information before replacing electronic controls.
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