SureFit Appliance Services is TSSA certified for gas appliances and specialises in repairing all major brands, including Bosch, across the Greater Toronto Area, Simcoe County, Grey County, York Region, and Durham Region. Same-day appointments may be available. SureFit confirms timing after reviewing your request.
E01 Error Code: Heating Element Fault
What It Means
The E01 code points to a problem with the heating element or its circuit. Without a functioning heating element, the dishwasher cannot raise water to the correct wash temperature — meaning dishes come out poorly cleaned and the drying phase may fail entirely.
DIY Troubleshooting Steps
- Turn off the dishwasher and wait 10 minutes before restarting. A temporary control glitch will often clear on its own.
- Confirm the cycle you’ve selected actually includes a heated wash phase. Economy and rinse-only cycles may skip water heating entirely.
- Inspect the heating element at the bottom of the tub for visible cracks, burn marks, or white chalky mineral deposits. Heavy lime scale can insulate the element and prevent it from heating efficiently.
- If scale buildup is present, run a cleaning cycle with a commercial dishwasher descaler formulated to remove mineral deposits.
- Verify that your home’s hot water supply is working. Run a nearby tap — water should turn hot within 30 seconds.
When to Call a Professional
If the error returns after a restart and a descaling cycle, the heating element itself has likely failed. Replacing it requires partial disassembly of the dishwasher and safe handling of electrical connections. Contact SureFit Appliance Services at (647) 977-2626 for a diagnostic assessment.
E09 Error Code: Heating Failure
What It Means
The E09 code signals that a heating failure was detected mid-cycle — the water failed to reach its target temperature, and the dishwasher interrupted the program as a result.
DIY Troubleshooting Steps
- Power the dishwasher off completely at the control panel, wait five minutes, then restart and run a short test cycle to see whether the error reappears immediately or partway through.
- Test your home’s hot water supply by turning on a nearby tap. Water should get genuinely hot within 30 seconds. If it doesn’t, the problem may be your water heater rather than the dishwasher.
- Check the inlet hose connections at both ends — behind the dishwasher and at the wall — for kinks or loose fittings.
- If the appliance has sat unused for several weeks, sediment can settle around the heating element. Running a rinse cycle followed immediately by a full normal wash can help flush any accumulated debris.
When to Call a Professional
When hot water is confirmed to be reaching your kitchen but the error persists, the heating element or its control sensor has likely failed and needs professional diagnosis. SureFit is available for emergency requests at (647) 977-2626.
E15 Error Code: Water in Base or Overflow Detected
What It Means
The E15 code means water has accumulated inside the base of your dishwasher — either from an internal leak or a drainage failure. This is a built-in safety feature designed to halt the cycle and prevent further water damage to your floor or cabinetry.
DIY Troubleshooting Steps
- Stop the cycle immediately and unplug the dishwasher from the power outlet before doing anything else.
- Open the door and inspect the tub floor for standing water. If water is present, remove it using towels or a wet vacuum.
- Examine all visible hoses and the door seal for cracks, tears, or debris preventing a watertight closure.
- Check the spray arms for blockages or misalignment that could redirect water toward the base rather than the dishes.
- Inspect and clean the filter thoroughly (see the detailed E24 filter cleaning steps further below).
- Once the interior is dry and the filter is clear, plug the dishwasher back in and run a short rinse cycle to test.
When to Call a Professional
If water reappears in the base after cleaning, or if you find cracks in the tub or door seal, professional repair is required. Internal leaks and worn door gaskets are not reliably fixed with household materials. Call SureFit at (647) 977-2626.
E16 Error Code: Water Intake Problem
What It Means
The E16 code means the dishwasher isn’t receiving an adequate water supply. The most common causes are a closed shut-off valve, a kinked inlet hose, or a clogged inlet filter screen.
DIY Troubleshooting Steps
- Confirm your home’s water supply is fully on by turning on a nearby hot and cold tap.
- Pull the dishwasher out slightly — carefully — and inspect the inlet hose for kinks or tight bends. Straighten any you find gently.
- Check that both ends of the inlet hose are firmly connected: at the dishwasher inlet and at the wall shut-off valve. Tighten clockwise with an adjustable wrench if either connection feels loose.
- If connections are secure, the inlet filter screen may be blocked. This small mesh screen sits at the hose connection point on the dishwasher. Turn off the water supply, disconnect the hose, and rinse the screen under clean running water to remove any sediment or grit.
- Reconnect the hose, restore the water supply, and run a test cycle.
When to Call a Professional
If water flows normally everywhere else in your home but the dishwasher still won’t fill after these steps, the inlet valve itself has likely failed and needs replacement. Reach us at (647) 977-2626.
E17 Error Code: Water Temperature Problem
What It Means
The E17 code means the dishwasher’s temperature sensor has detected that incoming water is outside the normal operating range — either too cold to wash effectively or, less commonly, too hot for the sensor to accept.
DIY Troubleshooting Steps
- Restart the dishwasher. Isolated sensor glitches often resolve with a single power cycle.
- Check whether any recent work was done on your home’s water heater, or whether multiple hot water appliances were running at the same time, which can temporarily reduce the temperature at the tap.
- Confirm the inlet hose connects to the hot water supply line — typically identified by a red fitting or red tape at the connection point. Incorrect installation can mean the dishwasher receives only cold water.
- Run your kitchen hot water tap and time how long it takes to get genuinely hot. If it takes more than 60 seconds, distance or inadequate pipe insulation may be limiting the temperature reaching the dishwasher.
- If the appliance has been sitting idle for several weeks, water in the inlet hose will have cooled to room temperature. Running a full hot water cycle can restore normal operating conditions.
When to Call a Professional
When your home’s water heater is confirmed working and the error continues through multiple cycles, the temperature sensor inside the dishwasher is likely defective. Sensor replacement requires professional diagnostics. Call (647) 977-2626.
E22 Error Code: Filter Blocked
What It Means
The E22 code indicates a detected blockage in the filter system severe enough to impair water circulation or drainage. In most cases, the fix is straightforward: the filter needs to be removed and cleaned.
DIY Troubleshooting Steps
- Power off the dishwasher and let it cool for a few minutes before opening the door.
- Locate the filter at the bottom of the tub — on most Bosch models, it’s a cylindrical assembly positioned at the centre or rear of the tub floor.
- Twist or lift the filter to remove it, following your model’s manual if the mechanism isn’t immediately obvious.
- Hold the filter under warm running water and rinse away all food particles and grease. Use a soft brush — an old toothbrush is ideal — to scrub stubborn buildup from the mesh.
- Wipe the filter housing clean with a damp cloth, paying attention to corners and gaps where debris collects.
- Reinstall the filter, ensuring it clicks or twists fully into its locked position.
- Run a rinse cycle to confirm the error has cleared.
When to Call a Professional
If the E22 error reappears immediately after a thorough filter cleaning, the blockage may be deeper in the drain system or the filter sensor itself may be faulty. Contact SureFit Appliance Services at (647) 977-2626.
E23 Error Code: Drain Pump Fault
What It Means
The E23 code signals a problem with the drain pump — the component responsible for pushing wastewater out of the dishwasher after each wash phase. The pump motor may have failed, the impeller may be broken, or a piece of debris may be jamming the mechanism.
DIY Troubleshooting Steps
- Stop the cycle immediately to prevent water from pooling further. Do not restart yet.
- Power off the dishwasher, open the door, and allow it to sit for five minutes.
- Clean the filter assembly thoroughly — food debris lodged near the pump inlet is the most common cause of this error. Follow the detailed steps in the E24 section below.
- Check the sump area (the small recessed pit where water collects before draining) and remove any visible debris with your fingers or tweezers.
- Once the filter and sump are clear, run a short rinse cycle and listen carefully. A functioning drain pump produces a brief whirring sound near the base of the dishwasher when draining begins.
When to Call a Professional
If the pump makes no sound at all, or water refuses to drain after cleaning, the pump motor or impeller has failed and needs replacement. Accessing the drain pump requires opening the base of the dishwasher and disconnecting internal components — a job best handled by a technician. Call (647) 977-2626. Appointment and Emergency Request Availability
E24 Error Code: Drain Blocked (Most Common)
What It Means
The E24 code is the single most frequently reported Bosch dishwasher error. It means the drain system is obstructed and water cannot exit the machine. Causes range from a clogged filter and grease buildup in the drain path to a kinked drain hose at the back of the appliance.
Why E24 Is So Common
The filter and drain system capture every food particle rinsed off your dishes during a cycle. Without regular cleaning — ideally once a month — these particles accumulate into a compacted blockage. Dishes loaded with heavy food residue, or oversized items that obstruct the spray arms, accelerate the problem. The good news: in the majority of E24 cases, a thorough DIY clean resolves the error entirely.
Detailed DIY Troubleshooting and Filter Cleaning
Step 1: Safety First
- Turn the dishwasher off at the control panel.
- Unplug it from the wall outlet.
- Open the door and allow the interior to cool if a cycle has recently run.
Step 2: Remove Standing Water
- If water is pooled at the tub bottom, remove the bulk of it using towels or a wet vacuum. You don’t need the interior completely dry — just clear enough to work safely.
Step 3: Access and Remove the Filter
- Locate the filter basket at the bottom of the tub. Most Bosch models use a two-part cylindrical plastic assembly.
- The outer component is a coarse filter; inside it sits a finer mesh filter. Twist the handle counter-clockwise (or unlock it if your model uses a clip) and pull the entire assembly straight up.
- Separate the two filter parts if your model allows — they typically twist or pull apart by hand.
Step 4: Clean the Outer (Coarse) Filter
- Hold the outer filter under warm running water.
- Use your fingers to rub away all visible food particles and grease, paying close attention to the mesh holes.
- For stubborn grease deposits, scrub gently with a soft-bristled brush — an old toothbrush works well — using small circular motions across the mesh surface.
- If buildup is heavy, soak the filter in warm water with a small amount of dish soap for 10–15 minutes, then scrub and rinse again.
- Rinse until water runs completely clear through every part of the mesh.
Step 5: Clean the Inner (Fine) Filter
- Rinse the inner filter under warm running water using the same technique — fingers first, then a soft brush for any stubborn spots.
- Because this filter has finer holes, it clogs more readily. Take extra time here.
- Hold it up to a light source: every opening should be visible and unobstructed. If any holes appear blocked, continue rinsing and gently brushing until they clear.
Step 6: Inspect the Filter Housing
- With the filters removed, look into the cavity where they sit. Grease, food fragments, and debris often cling to the housing walls and floor.
- Wipe the housing clean using a damp cloth or sponge, using your fingers to dislodge anything stubborn.
- Check all corners and the
Need Appliance Repair in Ontario?
SureFit Appliance Services covers Keswick, Barrie, Newmarket, Orillia, Collingwood, and 200+ communities across Simcoe County, York Region, and Grey County. Our service call fee is $85 + HST per appliance — waived when we proceed with the repair. All completed repairs carry a 90-day parts and labour warranty.
Call: (647) 977-2626 | Book Online →
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A service-call fee of $85 + HST applies to each appliance diagnosed. If you approve a repair for an appliance, that appliance’s service-call fee is waived. 90-day parts & labour warranty on every job.