Most dishwashers last 9 to 12 years. Bosch and Miele tend to reach the top of that or beyond. Budget machines often start giving trouble before the decade mark. Whether a repair still makes sense comes down to how old the machine is, what actually failed, and what a comparable new one would set you back.
What each tier really gets you
Budget brands, think Amana or entry-level Whirlpool, are realistically 8 to 10 good years before repair costs start outrunning value. The mid-range, which is most of what people own, mid-tier Bosch, GE, KitchenAid, tends to land in the 10 to 12 year window. Premium, Miele especially, is tested to something like 20 years of household use, and it shows in how long parts stay available and how repairable the machine is.
That said, tier is only a starting point. A well-kept mid-range unit outlasts a neglected premium one every time. Feed it hot water, clean the filter monthly, do not jam the racks into the spray arms, and you add years.
Where the line sits
Simple version: if the repair costs more than half of what a comparable new machine would run, replacement usually wins. On a $600 dishwasher, that puts the line around $300. On a $1,200 Bosch, you have more room to justify the work because the machine is worth more to begin with.
Age stacks on top. A 4-year-old machine with a bad pump motor is almost always worth fixing. A 13-year-old machine with a cracked tub and a dead board is not, even if each part looks affordable on its own. You are not buying one repair, you are buying the odds that the rest holds together.
The failures that mean stop
Some breakdowns are just repairs. Others tell you the whole machine is worn through.
Control board on an older unit usually means more is coming. Boards are expensive, and a machine old enough to eat a board has run up wear everywhere else too.
Tub damage, rust working through or a cracked inner liner, is a retirement signal. The tub is structural and it is not a field repair.
A second pump or motor failure on the same machine is a pattern, not bad luck. Either persistent hard water and debris getting past a worn filter, or the machine is simply old. One pump repair is normal. Two in three years is the machine telling you.
Door seal deterioration with a leak is fixable and usually cheap. On its own, not a reason to replace.
Spray arm clogs are maintenance, not failure. Clean them before you call.
What we actually look at
When a dishwasher is not cleaning or not draining, we start at the basics: filter, drain hose routing, are the wash arm ports clear. A good share of calls end right there.
Past that, we test the pump and motor for noise and resistance, check the inlet valve, and read the board if it is behaving erratically or throwing codes. On older machines we look hard at the tub before recommending anything, because there is no sense putting $200 of parts and labor into a machine with corrosion eating the liner.
Fault codes help. Modern Bosch, Miele, and KitchenAid units log them and they give us a starting point, but they do not replace the diagnosis. A code pointing at the drain might be a bad pump, or it might be a blockage the pump cannot clear. You confirm it, you do not just trust the light.
What is safe to do yourself
Cleaning the filter, clearing the spray jets, and checking for a kinked drain hose are all homeowner-safe. So is confirming the latch engages and the machine sits level, because an unlevel install causes poor cleaning and sometimes leaks.
If none of that fixes it, next comes disassembly. Inlet valve, pump and motor, anything touching the board or wiring, those are tech jobs. The teardown varies a lot by brand, and on some machines a botched reassembly leaves a slow leak that damages the floor over weeks. That follow-on damage costs far more than the original call.
When to call someone
Under 8 years old and showing anything past a minor symptom? Get a diagnostic before you write it off. Parts are easy to find in that range and a repair usually beats replacement plus install.
Over 12 years old and the failure is in the pump, motor, or board? A straight-shooting tech will tell you whether the numbers work. We will.
Anywhere in the Bay Area, call Bay Area Appliance Repair Service at (925) 999-4095 or schedule a visit online. We get you on the schedule fast, often same or next day, tell you exactly what we found, and give you an honest recommendation. It is a $75 diagnostic, credited toward the repair.