A Frigidaire Dishwasher That Would Not Drain in Highland Park
A Highland Park homeowner called A+ Appliance Repair and Maintenance about a Frigidaire dishwasher that was not draining, leaving dirty water standing in the bottom of the tub at the end of every cycle. Standing water has several possible causes that are not equally expensive, from a clogged filter or sump to a blocked drain hose, a garbage disposal knockout plug that was never removed at installation, or a failed drain pump. Our technician worked through the drain path methodically rather than assuming, found and cleared the cause, and confirmed the dishwasher drained fully with no water left behind. We also leak-checked the connections, since a dishwasher sits enclosed under the counter where a slow problem can go unnoticed.
Standing Water in the Bottom of a Frigidaire Dishwasher in Highland Park
A homeowner in Highland Park called A+ Appliance Repair and Maintenance about a Frigidaire dishwasher that was not draining. At the end of the cycle, instead of an empty tub, there was a pool of dirty water sitting in the bottom, with the dishes soaking in it. It is an unpleasant thing to open the door to, and it is one of the most common dishwasher complaints we get.
Standing water is a symptom, not a diagnosis
Water left in the tub at the end of a cycle can come from several very different places, and they are not equally expensive to fix. Part of a good repair is telling them apart before touching a part.
It can be a clogged filter or sump, where food debris has built up to the point that water cannot reach the pump. It can be the drain hose, kinked behind the machine or plugged partway along its run. It can be the air gap on the counter, if the installation has one, quietly filling with sludge. It can be the garbage disposal, and specifically the knockout plug inside the disposal inlet that is supposed to be removed during installation; that plug gets left in place more often than you would think, and the dishwasher can never drain properly from the day it is installed. It can be a check valve letting water flow back into the tub after the pump has pushed it out. Or it can be the drain pump itself.
Every one of those produces the same puddle. Only some of them need a new part, which is exactly why guessing is the wrong approach.
Working the drain path
Our technician worked through the possibilities in order rather than jumping to a conclusion. The filter and sump area came first, since that is both the most common cause and the least expensive outcome for the customer. Then the drain path: the hose checked for kinks and restrictions, the connection at the disposal or standpipe inspected, the knockout plug considered. Then the question of whether the drain pump was being told to run and actually moving water, because a pump that never energizes and a pump that has failed look identical from the front.
Working it in that order protects the customer. It means the cheapest, most likely causes are found first, and a part only gets replaced when the free and simple fixes have genuinely been ruled out.
The repair
Our technician found and cleared the cause of the drain failure, then ran the dishwasher through a complete cycle and confirmed the tub emptied fully at each drain phase, with no water flowing back into the sump afterward and no water left standing at the end. He also leak-checked the connections, which matters more on a dishwasher than on most appliances, because these machines sit enclosed under a countertop where a slow drip or seep can go unnoticed for a long time and end up in the cabinet base or subfloor rather than somewhere you would spot it.
Keeping a dishwasher draining
A few habits genuinely help. Clean the filter; most modern dishwashers have a removable filter in the floor of the tub that twists out by hand and rinses clean under the tap in a minute, and keeping it clear keeps debris away from the pump. Scrape plates before loading, but you do not need to pre-rinse them spotless; what you want to keep out are the things that do not break down, like labels, produce stickers, bones, and fruit pits. And if you have a garbage disposal, run it before starting the dishwasher, since the two share a drain connection and whatever is sitting in the disposal ends up in the dishwasher's path.
About A+ Appliance Repair and Maintenance
We service Frigidaire, Whirlpool, KitchenAid, Bosch, LG, Samsung, GE, and every other major dishwasher brand throughout Highland Park, Eagle Rock, and the greater Los Angeles area. Our technicians are certified and carry common parts, so a drain problem like this one can usually be diagnosed and repaired in a single visit.
We quote the price upfront before any work begins, we waive the service call fee when you move forward with the repair, and every completed repair is backed by our full repair warranty. If your dishwasher is leaving water in the bottom, it is worth having looked at sooner rather than later. Standing water gets unpleasant fast, and a drain problem that starts small tends not to stay small.
