Bosch SMS63M28AU: Key Facts for Buyers & Owners

The Bosch SMS63M28AU is a freestanding, fully integrated dishwasher that cleans up to 13 place settings and offers a range of programs including Eco, Auto, and Intensive. Key facts buyers and owners need to know: it has a stainless steel interior, a water consumption of about 9.5 liters per cycle, and an energy rating of A++ (old EU scale). This article covers its specifications, performance, common issues, and what to check before buying or using this model.

Background and Model Positioning

The SMS63M28AU belongs to Bosch’s mid-range dishwasher series from the mid-2010s, positioned between the basic Serie 2 and the premium Serie 6. It is a 60 cm freestanding model with a stainless steel front, designed to be placed under a countertop or standalone. Unlike fully integrated models, the control panel is visible on the top edge, making it easy to operate without opening the door.

This model is known for its quiet operation (44 dB) and its use of Bosch’s EcoSilence Drive, a brushless motor that reduces noise and increases durability. It also features the ‘AquaStop’ system, which is a standard safety feature on most Bosch dishwashers, protecting against water leaks.

Key Specifications and Dimensions

Before purchasing, measure your space. The SMS63M28AU has the following dimensions and capacities:

• Width: 60 cm (standard)
• Height: 84.5 cm (adjustable up to 87.5 cm via feet)
• Depth: 60 cm (with door closed)
• Capacity: 13 place settings
• Weight: Approximately 50 kg (unpacked)
• Noise level: 44 dB (quiet enough for open-plan kitchens)

The machine requires a cold water connection (max 60°C) and a 220-240 V power supply. It is not designed for hot water hookup, which is common in some older European installations.

Programs and How It Works

The SMS63M28AU offers five main programs plus a half-load option. Understanding each helps you choose the right cycle:

• Eco 50°C: The most energy-efficient program, using about 9.5 liters of water and 0.92 kWh. It runs longer (up to 3 hours) but is ideal for normally soiled dishes.
• Auto 45-65°C: Automatically adjusts temperature and water pressure based on soil level. Good for mixed loads.
• Intensive 70°C: For heavily soiled pots and pans, uses more water and energy.
• Quick 45°C: A shorter cycle (about 1 hour) for lightly soiled dishes, but less energy efficient than Eco.
• Glass 40°C: Gentle washing for delicate glassware and china.

The machine uses a heat exchanger and a stainless steel tub to maintain consistent drying. The ‘Extra Dry’ option (if enabled) increases the final rinse temperature for better drying results, but consumes more energy.

Common Problems and Troubleshooting

Owners report a few recurring issues with this model. Here are the most common and how to address them:

• Dishwasher not draining: Check the filter at the bottom of the tub for food debris, and ensure the drain hose is not kinked. Clean the filter monthly.
• White residue on dishes: Usually caused by hard water. Increase the rinse aid setting (dial inside the door) and use dishwasher salt if your water hardness is above 15°dH.
• Error code E15: This indicates water in the base tray (AquaStop activation). Turn off the water supply, unplug the machine, and tilt it to drain the tray. If it recurs, call a technician.
• Door not closing properly: Check that the door gasket is clean and the hinges are not obstructed. A misaligned door can cause leaks.

If the machine displays a flashing ‘Clean’ light, it often means a blocked filter or drain—cleaning these usually solves it.

Cost of Ownership and Efficiency

The SMS63M28AU is rated A++ for energy efficiency (old EU scale, roughly equivalent to C on the 2021 scale). Actual running costs depend on your electricity and water tariffs. As a guide:

• Eco cycle uses 0.92 kWh and 9.5 liters per wash.
• Annual energy consumption (280 cycles) is about 258 kWh.
• Annual water consumption is about 2660 liters.

Using the Eco program and only running full loads will minimize costs. The machine has a ‘Half Load’ option that reduces water and energy by about 30% for smaller loads, but it is less efficient than a full load.

Safety Features and Installation

Bosch includes several safety features on this model:

• AquaStop: A double-walled supply hose and a safety valve that stops water flow if a leak is detected. This is a standard Bosch feature and protects against water damage.
• Child lock: You can activate a button lock to prevent accidental program changes (press and hold the ‘Start’ button for 3 seconds).
• Overflow protection: The base tray has a float switch that triggers the E15 error if water accumulates.

During installation, ensure the drain hose is not submerged in the sink drain (leave an air gap) to prevent siphoning. Level the machine using the adjustable feet to avoid rattling and ensure proper door sealing.

Comparison with Similar Models

If you’re considering the SMS63M28AU, you might also look at the SMS63M28EU (same but with a different front panel) or the SMS63M28GB (UK version). The main differences are cosmetic. Compared to newer models like the SMS6ZCI48E, the SMS63M28AU lacks Wi-Fi connectivity and the ‘PerfectDry’ feature, which uses a mineral to enhance drying. However, the SMS63M28AU is simpler and often cheaper to repair due to its older, proven design.

For owners, it’s worth noting that this model does not have a cutlery tray; it uses a standard cutlery basket. Some users prefer this, as it allows for larger items in the top rack.

Frequently Asked Questions

Does the Bosch SMS63M28AU have a child lock?

Yes, it does. Press and hold the ‘Start’ button for about 3 seconds until the ‘Child Lock’ indicator lights up. This disables all buttons except the power switch. To unlock, repeat the same action.

How do I clean the filter?

Turn off the dishwasher, remove the bottom rack, and twist the cylindrical filter counterclockwise to lift it out. Rinse it under running water, remove any debris from the fine mesh, and replace it. Do this every 2-4 weeks to prevent clogging.

Can I use regular dishwasher tablets?

Yes, you can use all-in-one tablets (like Finish Quantum) or powder/gel. If you use tablets, you may not need separate rinse aid, but for best drying results, keep rinse aid filled. The machine has a rinse aid indicator on the control panel.

Why is my dishwasher not drying dishes completely?

Common causes: using the Eco program (which has lower final rinse temperature), not using rinse aid, or overloading the machine. Try enabling the ‘Extra Dry’ option (if your model has it) and ensure the rinse aid reservoir is full. Also, leave the door slightly open after the cycle for 15 minutes.

What does the E15 error mean and how do I fix it?

E15 indicates water in the base tray, which triggers the AquaStop system. First, turn off the water supply and unplug the machine. Tilt the dishwasher slightly to drain the tray (place towels underneath). If the error persists after drying the tray, there may be a leak—contact a qualified technician.

Is this dishwasher suitable for a small kitchen?

It is a standard 60 cm width, so it requires a space of at least 60 cm wide, 60 cm deep, and 85 cm high. If you have less space, consider a 45 cm slimline model. But for most standard kitchen layouts, this size is fine.

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