Display shows E1 and brewing will not start or stops immediately on a Black+Decker digital coffee maker.

Safety first: Unplug the coffee maker and allow it to cool completely before opening any panels. Never work on the unit while it is connected to power.

Step-by-step checks:

• Power reset: Unplug the coffee maker for 10–15 minutes, then plug it back in and try a brew cycle. Sometimes the control board will clear a transient E1 error.
• Inspect the base: Turn the unit upside down on a towel. Remove the screws securing the bottom cover (usually Phillips). Carefully lift the base to expose the heating plate and wiring.
• Locate the NTC sensor: On most Black+Decker drip models, a small round or bullet-shaped sensor is clipped or bonded to the underside of the warming plate or near the heating element. It will have two thin wires leading to the control board.
• Check connections: Look for loose push-on terminals, broken wires, or corroded connectors at the sensor and at the control board. Reseat any loose connectors firmly.
• Test the sensor (if you have a multimeter): Disconnect the sensor leads from the board. Measure resistance across the sensor. At room temperature, an NTC will typically read between 5 kΩ and 200 kΩ (exact value varies by model). A reading of 0 Ω (short) or infinite (open) indicates a failed sensor.
• Inspect the control board: Look for burnt spots, cracked solder joints, or corrosion where the sensor wires connect. If the sensor tests good but E1 persists, the control PCB is likely faulty.

When to replace parts:

• If the sensor is open/shorted or physically damaged, replace the temperature sensor (NTC) assembly specific to your Black+Decker model.
• If wiring and sensor are intact but E1 remains, replace the main control PCB. This usually requires removing the top cover and front panel to access the board.

Warning: If you are not comfortable working around mains wiring or disassembling the base, contact a qualified appliance technician.