Maytag MHD90 Dryer Shows Error Code 13 on Start

What Is Error Code 13?

When a Maytag MHD90 dryer begins to display an error code, the machine’s built‑in diagnostic system is telling you that something is not functioning as it should. Error code 13 is one of the most common messages you’ll see, especially on the start sequence. It usually appears right after you press the start button and the dryer attempts to begin a cycle. Understanding what this code means is the first step toward resolving the problem and getting your clothes drying again.

The Diagnostic Language of Maytag Dryers

Maytag dry‑ers use a simple two‑digit code system. Each code points to a specific fault. Some are related to temperature sensors, others to airflow, and many relate to the control board or door latch. Because the code is displayed on the digital panel, you can read it quickly and decide whether you need to perform a quick fix or call a professional.

Error code 13 is not a temperature‑related fault. Instead, it indicates an issue that prevents the dryer from starting safely. Think of it as a safety interlock warning—something that, if left unresolved, could cause the machine to overheat, short‑circuit, or otherwise damage itself.

Quick Reference: Common Causes of Error Code 13

These categories cover the majority of cases. However, each situation can be unique, so a systematic approach is key.

Understanding the Dryer’s Error Code System

Maytag dry‑ers are equipped with a control board that monitors various sensors and inputs:

1. Door latch sensor – ensures the door is closed before the dryer runs.
2. Temperature sensors – monitor heat levels inside the drum and cabinet.
3. Vent airflow sensor – detects blocked venting.
4. Start button sequence – checks whether the user has correctly followed the start procedure.
5. Power supply monitor – ensures voltage is within acceptable ranges.

If any of these components fail to report acceptable values, the control board will halt operation and flash an error code. Error code 13 specifically indicates a problem that the dryer interprets as a safety issue before it can start. That means the dryer will never reach the heating stage.

How the Dryer Interprets “Start”

Unlike many other appliances that start with a single press, most Maytag dry‑ers require a two‑step process:

1. Press the “Start” button once – the dryer signals “ready.”
2. Press the “Start” button again – the dryer confirms the user’s intent to run a cycle.

If the dryer does not detect this second press within a few seconds, it will assume the cycle was canceled or that the user pressed the button too early. It will then display error code 13 to indicate that it cannot safely proceed.

Step‑by‑Step Troubleshooting Guide

Below is a structured plan to help you isolate and fix error code 13. Follow the steps in order; skipping any may result in missing the root cause.

1. Power Check & Reset

1. Unplug the dryer – disconnect it from the electrical outlet for at least 30 seconds.
2. Inspect the outlet – use a voltage tester to confirm 240 V (or 120 V if your model is single‑phase). Look for flickering lights or an outlet that feels warm.
3. Plug the dryer back in – re‑connect it to the same outlet.
4. Press the “Reset” button – on the front panel, usually labeled “Reset” or “Cancel.” Hold it for 3–5 seconds.
5. Attempt to start again – press the “Start” button twice as described above.

If the code persists after this reset, move to the next step.

2. Verify Door Latch and Switch

1. Open the dryer door – ensure it fully closes.
2. Inspect the latch – look for bent or broken parts that could prevent the door from engaging.
3. Check the door switch – the switch is typically located behind a small panel on the front of the dryer. Use a multimeter to test continuity; it should read 0 Ω when the door is closed.
4. Test the latch function – close the door and press the start button twice. If the dryer still shows error 13, replace the door switch.

Common Mistakes: Some users mistakenly believe a partially open door is fine. The latch must be fully engaged; otherwise, the dryer treats it as a safety breach.

3. Inspect and Clean the Vent

1. Unplug the dryer – safety first.
2. Disconnect the vent hose – locate the hose at the back of the dryer; remove it carefully.
3. Check the inside of the hose – look for lint buildup. Use a vacuum or a vent cleaning brush to remove obstructions.
4. Inspect the duct leading to the outside – lint can accumulate inside the metal duct. Clean it with a brush or vacuum.
5. Reconnect the hose – ensure it is firmly attached both inside and outside.
6. Run a test cycle – the dryer should start without error.

A clogged vent can cause the dryer to overheat quickly, triggering a safety lockout. Clearing it often resolves error 13.

4. Test the Start Button Sequence

1. Press the “Start” button once – the panel should indicate “Ready.”
2. Wait more than 5 seconds – do not press again immediately.
3. Press the “Start” button a second time – the cycle should begin.

If the dryer only recognizes the first press and then shows error 13, the start button or its associated wiring may be faulty. Replace the button or check the wiring harness for breaks or loose connections.

5. Check the Control Board

The control board is the brain of the dryer. If it detects a fault it cannot correct, it will display error 13.

1. Locate the control board – it is typically behind the back panel or front console.
2. Inspect for visible damage – look for scorch marks, blown capacitors, or loose wires.
3. Check connections – ensure all ribbon cables are seated firmly.
4. Perform a board reset – unplug the dryer, wait 30 seconds, and plug it back in. Some boards will automatically reset.
5. If the error persists – you may need to replace the control board. Contact Maytag service or a licensed technician.

When to Call a Professional

Even with thorough troubleshooting, some issues are beyond DIY fixes. If you’ve exhausted the steps above and the error remains, consider the following:

• Wiring faults: Deep inside the dryer’s electrical system may be a fault that requires a licensed electrician.
• Control board replacement: Boards are expensive and require careful handling.
• High‑voltage components: If you’re unsure about any part that deals with the dryer’s high voltage, professional help is safest.

Calling a qualified technician also ensures that any repair complies with local safety codes and warranty conditions.

Preventive Maintenance Tips

Regular upkeep can prevent the recurrence of error 13 and extend your dryer’s lifespan.

• Clean the vent every 3–6 months – even if you’re not seeing error 13, lint buildup can create safety hazards.
• Check the door latch annually – look for wear and replace the switch if needed.
• Inspect the control panel for cracks or moisture – keep the dryer in a dry environment.
• Keep the interior clean – lint and debris on the drum can affect airflow.
• Test the dryer with a cycle every 6–12 months – ensures all sensors and systems are functioning.

Common Misconceptions

1. “It’s a software glitch.” While software can fail, error 13 typically signals a physical safety issue.
2. “Just keep unplugging and plugging back in.” A single reset may mask the underlying problem, leading to repeated errors.
3. “The door latch is fine; the problem is the start button.” Both components are equally likely; test them both.

Frequently Asked Questions

Why does my dryer show error code 13 after a power outage?

A sudden loss of power can cause the control board to reset but leave the door latch status uncertain. Verify the latch and reset the dryer.

Can I bypass error 13 to force the dryer to run?

No. The code is a safety interlock. Ignoring it can cause overheating or fire.

Does error 13 only occur on the Maytag MHD90 model?

No. Many Maytag and other brands use code 13 for a similar safety condition. The troubleshooting steps are largely the same.

How can I tell if the vent is truly clogged?

If the dryer takes longer than usual to dry clothes, or if the vent appears visibly dusty, clean it. Use a vent brush kit to reach all bends.

Is a new control board guaranteed to fix error 13?

If the board is the root cause, yes. However, if the issue lies elsewhere (e.g., latch, vent, start button), the problem will reappear. A full diagnostic is recommended before replacing the board.

Recap of the Troubleshooting Flow

1. Reset & Power Check – start with the simplest fix.
2. Door Latch & Switch – confirm safety interlock is engaged.
3. Vent Cleaning – ensure airflow is not restricted.
4. Start Button Sequence – verify user input is correctly recognized.
5. Control Board – last resort for hardware faults.

Each step is a logical progression from the simplest to the most complex. By following the flow, you increase the likelihood of resolving error 13 without unnecessary parts or professional calls.

Closing Thoughts

Error code 13 on a Maytag MHD90 dryer can feel like a roadblock, but it’s a clear message from the appliance’s safety system. With a methodical approach—checking power, door latch, vent, button sequence, and control board—you can identify the culprit and restore reliable operation. Regular maintenance, especially vent cleaning, will help keep your dryer free of the conditions that trigger code 13 in the first place.

When in doubt, don’t hesitate to reach out to a licensed appliance repair technician; their expertise can save time, money, and prevent safety hazards.