MODEL PROFILE
Signal or code
Error codes and display signals
The official manual linked for this model documents these messages. Some indicators apply only to variants that display them; each entry is labeled as a code, indicator, or status.
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Official PDF manual
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MODEL OVERVIEW
About this model: Bosch SPE53B55UC
Bosch SPE53B55UC: a compact front-control dishwasher with documented E codes.
Confirm the narrow stainless model
SPE53B55UC is a Bosch built-under dishwasher with a narrow 17 5/8-inch body, 32 1/16-inch height and 22 9/16-inch depth. The exact product page gives ten place settings and 46 dBA. Its anti-fingerprint stainless front has a recessed handle; a cabinet panel is not supported. This matters when replacing a slim machine because the visible door and cutout cannot be inferred from a wider 24-inch Bosch. The owner PDF names SPE53B55UC on its first page, while the front control drawing is inside that same document. Bosch says InfoLight is not applicable here, so a missing red spot on the kitchen floor is normal for this model. Measure the opening, allow for hoses, and record the complete service suffix before ordering a replacement fascia.
Use its actual cycles and drying hardware
The listed programs are Heavy, Auto, Normal, Rinse and Favorite. Rinse is a cold pre-rinse for dishes waiting for a later load, not a substitute for a full clean. AquaSensor checks the turbidity of the wash water, allowing the Auto program to respond to soil; Favorite stores a cycle and option combination. Delicate suits lightly soiled glassware, whereas Extra Dry raises final-rinse temperature and extends the drying phase. This appliance has PureDry and no built-in water softener, unlike some larger Bosch models. Do not tell an owner to add softener salt to a compartment this SKU does not have. RackMatic adjusts the upper basket evenly, and the 32-inch rack chart gives different dish clearances with a cutlery basket versus a drawer. Those choices can explain a poor result without invoking an error code.
Read the display before changing a setting
The front panel has a numeric display for remaining time and basic settings, alongside a water-supply warning. h:01 on that display is a one-hour delayed start; the default rinse-aid dosage r04 is another configuration value. Neither is a fault. The Home Connect remote-start function needs the dishwasher connected to Wi-Fi and the app, so a remote command that will not start deserves a connection check before service. A lit Machine Care reminder instead calls for the cleaning program with an empty tub. The micro, fine and coarse filters can collect debris even when dishes look clean. Before cancelling a cycle, write down the entire displayed string and the lit icon, then compare it with the exact manual. The same short display handles timing, settings, maintenance and faults.
Treat water-protection and inlet messages differently
E:30-00 and E:31-00 both mean the water-protection system has activated. Bosch directs the owner to close the supply faucet and call service; repeatedly restarting a wet machine is not a diagnosis. E:34-00 is different: water continues entering, so close the faucet and contact service promptly. E:32-00, or the water-supply lamp, points toward the inlet side. The PDF lists a closed or scaled faucet, a bent supply hose and blocked connection filters as possible causes. Its minimum open-faucet flow is ten liters per minute. Inspect only accessible plumbing with power and water isolated as the manual directs. Keep the photographed code because all these conditions can interrupt a cycle but call for distinct checks, and the E:32 inlet procedure includes rechecking for leaks after reconnection.
Keep electrical and filter faults separate
E:90-01 reports low supply voltage; Bosch says the appliance itself has no problem and calls for an electrician to check the installation. E:92-40 instead identifies dirty or blocked filters, which the owner can remove and rinse under the manual's filter-cleaning instructions. These are not interchangeable explanations for a stopped wash. If a different E code returns after the published reset procedure, give its exact characters to Bosch customer service. Avoid assigning a detailed meaning to the broad E:01-00 through E:90-10 range printed in the fallback row. For a drying complaint without a code, check rinse-aid dosage, selected Extra Dry option and how the slim racks are loaded before assuming a pump or control failure. The exact signal narrows the next action; the product's compact size and PureDry system determine the relevant everyday checks.
Verified model details
Exact /16 Bosch support links the model-named owner PDF
Source for this detail17 5/8-inch body has PureDry and no water softener
Source for this detail · Source page: 11E codes distinguish water protection, inlet, voltage and filters
Source for this detail · Source page: 36
This description summarizes the linked source documents; check each cited source for your exact model and region.
Manufacturer source
Open official source
SPE53B55UC Dishwasher | BOSCH US
Open official sourceIf there is a safety risk, stop using the appliance and follow the manufacturer’s instructions.