Maytag Dishwasher Mdb7979Shz0 Won’T Start

Title: Maytag Dishwasher MDB7979SHZ0 Won’t Start

Have you ever found yourself in a situation where your trusty Maytag dishwasher MDB7979SHZ0 refuses to start? It can be quite frustrating, especially when you have a pile of dirty dishes waiting to be cleaned. But worry not, as we are here to help you troubleshoot and get your dishwasher up and running in no time. In this article, we will explore some common reasons why your Maytag dishwasher may not start and provide you with simple solutions to fix the issue. So, let’s dive in!

1. Check the Power Supply

The first step in troubleshooting any appliance is to ensure it is receiving power. Start by checking if your dishwasher is properly plugged into a functioning power outlet. If it is, try plugging in another device to confirm that the outlet is working correctly. Additionally, check if the circuit breaker hasn’t tripped or if a fuse hasn’t blown. Sometimes, a simple power supply issue can be the culprit behind your dishwasher’s refusal to start.

2. Verify the Door Latch

The door latch is a safety feature designed to prevent the dishwasher from running if the door is not securely closed. If the door latch is not engaged properly, your dishwasher won’t start. Inspect the latch and ensure it is not damaged or obstructed. If you notice any issues, such as a broken latch or debris blocking it, consider replacing or cleaning it, respectively.

3. Examine the Control Panel

The control panel is the brain of your Maytag dishwasher. It houses various buttons and settings that allow you to operate the appliance. If the control panel is malfunctioning, your dishwasher may not start. Check if any buttons are stuck or if the panel is displaying error codes. If you notice any abnormalities, try resetting the control panel by turning off the power for a few minutes and then turning it back on. This simple step can often resolve control panel issues.

4. Inspect the Door Switch

The door switch is another safety feature that prevents your dishwasher from starting if the door is open. Over time, the door switch may become faulty or misaligned, causing your dishwasher not to start. Carefully examine the door switch and ensure it is properly aligned and functioning. If you suspect a problem, you may need to replace the door switch to resolve the issue.

5. Check the Water Supply

A dishwasher requires a steady supply of water to operate effectively. If there is an issue with the water supply, your Maytag dishwasher may not start. Start by checking if the water valve supplying your dishwasher is turned on. Additionally, inspect the water inlet valve on the dishwasher itself for any clogs or blockages. Clear any debris if necessary and ensure a smooth flow of water.

6. Clean the Filter

A clogged filter can hinder the proper functioning of your dishwasher. Over time, food particles and debris can accumulate in the filter, leading to drainage and performance issues. Remove the filter located at the bottom of your dishwasher and clean it thoroughly. Rinse off any residue and ensure it is free from any obstructions. A clean filter can significantly improve your dishwasher’s performance and help it start without any problems.

7. Check the Float Switch

The float switch is a small device located at the bottom of your dishwasher. It detects the water level and signals the dishwasher to start or stop. If the float switch is stuck or obstructed, your dishwasher may not start. Gently move the float switch up and down to ensure it moves freely. If it doesn’t, clean the area around the switch and remove any debris that may be causing the obstruction.

8. Inspect the Motor and Pump Assembly

The motor and pump assembly is responsible for circulating water and powering the dishwasher’s various functions. If there is an issue with the motor or pump, your dishwasher may not start. Carefully inspect the assembly for any visible signs of damage or blockages. If you notice any abnormalities, it is best to contact a professional technician to diagnose and repair the problem.

9. Reset the Control Board

Sometimes, a simple reset can solve many electronic issues. If none of the above solutions have worked so far, try resetting the control board. Locate the control board, typically found behind the dishwasher’s front panel, and unplug the dishwasher for a few minutes. Then, plug it back in and see if it starts. This can often resolve minor glitches and get your dishwasher back in working order.


A Maytag dishwasher MDB7979SHZ0 that won’t start can be a frustrating experience. However, with a bit of troubleshooting, you can often identify and fix the problem yourself. By checking the power supply, examining the door latch, inspecting the control panel, verifying the door switch, ensuring proper water supply, cleaning the filter, checking the float switch, inspecting the motor and pump assembly, and resetting the control board, you can address common issues that prevent your dishwasher from starting. If the problem persists, it is recommended to seek professional assistance. Now, armed with these solutions, you can tackle the issue and get your Maytag dishwasher up and running again!