Dishwashers are a modern convenience that many households rely upon, but like any other machine, they may need repair and maintenance from time to time. There may be a number of reasons your dishwasher is malfunctioning or experiencing issues, and unless you have the expertise to correct them, it's best to contact a professional. Here are 4 reasons to enlist the help of a service repair technician for your dishwasher:

1. There is No Action From the Dishwasher

If your dishwasher will not turn on and start at all, the technician will probably check the door latch assembly. The problem may be caused by a defective door latch, or the latch switch may need to be replaced. This job simple enough when left to a professional.

There may be other reasons for the dishwasher not starting up. The electrical contacts of the timer may be faulty. This timer is used to power on the motor, and the function and voltage may be checked with the use of a multimeter. It's best to leave this task to a professional. Other issues that may prevent the dishwasher from stating are a faulty thermal fuse or selector switch, both of which can be repaired or replaced as needed by a technician.

2. The Dishwasher Will Not Drain

This can be more than a minor annoyance. When the dishwasher does not drain , water will fill the unit and may spill out onto the floor. If left to run, the dishwasher's inability to drain may cause flooding onto your kitchen floor. Rather than take chances by troubleshooting the problem yourself, turn the dishwasher off, unplug the unit and call a repairman to correct the problem.

The dishwasher drain sump holds what is known as a check valve. The technician may examine the assembly and note whether it operates when the unit is turned on. If it does not function as it should, it may need to be replaced. The repairman may also note whether the flapper or the solenoid is obstructed by food and debris.

Another reason for improper drainage may be due to the drain pump itself, or because the motor has worn out. The drain pump can be replaced, but replacing the motor may be more of an expense. Unless you are still under a warranty, it may be wise to simply buy a new dishwasher than replace the motor, especially if the unit is old.

3. There is a Leak Coming From The Dishwasher

A leaky dishwasher is not an issue to take lightly. If the problem is left ignored, you may experience water damage to your floors or home. Leaks and moisture may cause dangerous mold and bacterial growth in your home as well. If the dishwasher pump is defective, it may cause a leak and require a replacement.

Also, a major culprit of a leaking dishwasher is often due to a torn or cracked drainage hose. Your repair technician will replace the hose if necessary. Alternatively, the gaskets of the heating elements may need repair or replacement, as defective gaskets may cause a leak. This is a simple fix, as these gaskets are generally easy to come by and inexpensive to replace. Your technician may also check the door gasket, as an improper fit or worn out material may cause leaks. Replacing the door gaskets are another easy fix for the repairman.

4. The Dishwasher Racks Do Not Automatically Roll When the Cycle Is Completed

If your dishwasher racks do not roll out, forcing them to move manually could damage the racks or the units itself. It's a good idea to have a professional, licensed technician check this out before attempting to fix it yourself. He or she will check the rollers and wheels for breakage, tears and other damage. If it can't be repaired, replacement parts may be ordered. To save time, be sure to have the model and serial number of your dishwasher on hand for reference.

These are just a few of the issues a repair technician can detect and fix. The professionals will also be able to identify the cause of loud noise coming from the machine, cycles that don't complete, and other issues as well. Make a call to an appliance repair service center and save yourself time and aggravation.