When a dishwasher stops draining or cleaning well, the choice between a repair bill and a new machine is not always obvious. Age, the specific failure, and repair cost together usually make the answer clear.
Consider the age
Most dishwashers last around ten years. If yours is under that and the problem is a common part, a repair is usually worthwhile. Once a machine is past ten years, repairs become a gamble because other parts are likely to fail soon after, and newer models are quieter and more efficient.
Know the common failures
Many dishwasher problems are minor and fixable. A machine that will not drain often has a clogged filter or drain hose you can clear yourself. A door latch, gasket, or spray arm is an inexpensive part. More serious failures like the control board, pump, or motor are the expensive repairs that tip an older machine toward replacement.
Apply the cost rule
A common guideline is that if a repair costs more than half the price of a comparable new dishwasher, and the unit is well used, replacement makes more sense. Get the repair diagnosis and price first, then compare it against a new machine before deciding.
Before calling for service, clean the filter at the bottom of the tub and check the drain hose for clogs. A surprising number of drainage complaints are solved in ten minutes with no repair at all.
Dishwasher care
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Common questions
Why is my dishwasher not draining?
The most common causes are a clogged filter, a blocked or kinked drain hose, or debris in the drain pump. Clean the filter and check the hose first before assuming an expensive repair.
How long should a dishwasher last?
About ten years on average with regular cleaning. Running it regularly, cleaning the filter, and using rinse aid all help it reach the higher end of that range.
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