What to do if my Braun ThermoScan 4 Thermometer won't turn on?
- MMadison RobertsonAug 7, 2025
If your Braun Thermometer isn't powering on, the battery might be too low. Try inserting a new battery to resolve this.

What to do if my Braun ThermoScan 4 Thermometer won't turn on?
If your Braun Thermometer isn't powering on, the battery might be too low. Try inserting a new battery to resolve this.
What to do if my Braun Thermometer shows a system error?
If your Braun Thermometer displays a system error, follow these steps: * Ensure the probe tip and lens are clean and that a new, clean, disposable lens filter is attached. * Make sure the thermometer is properly inserted. * Take a new temperature. * Reset the thermometer by removing the battery and then replacing it again, wait 1 minute, then turn it on again. If the problem persists after these steps, it could be due to a low battery. In this case, insert a new battery.
How to stabilize Braun ThermoScan 4?
To stabilize your Braun Thermometer, wait until all the icons stop flashing before taking a measurement.
Why Braun Thermometer is not measuring temperature?
If your Braun Thermometer isn't measuring temperature, it might be because no hygienic lens filter is attached. Attach a new, clean, hygienic lens filter.
| Type | Ear thermometer |
|---|---|
| Measurement Method | Infrared |
| Measurement Site | Ear |
| Measurement Time | 1 second |
| Display | LCD |
| Warranty | 2 years |
| Accuracy | ±0.2°C (±0.4°F) |
| Display Resolution | 0.1°C |
| Memory | Last reading |
| Power Source | 2 x AA batteries |
| Auto Shut-off | Approximately 60 seconds |
| Age Range | All ages |
| Probe Covers | Disposable |
| Battery Life | Approximately 1000 measurements |
| Weight | Approximately 100g |
Provides phone and website details for inquiries and comments.
Specify the model number when contacting consumer relations.
Details protective cap, hygienic filter, probe, buttons, and display.
For consumer temperature measurement; includes age, water, and damage warnings.
Explains GREEN (Normal), YELLOW (Fever), RED (High Fever) on display.
Normal temperature varies by site, age, and time of day.
Prepare ear, use hygienic filter, and ensure proper fit.
Ensures hygiene, prevents contamination, and maintains reading accuracy.
Replace filter, prepare ear, consider external factors for accurate readings.
Clean probe tip with alcohol; avoid other cleaners; do not submerge.
Clean exterior with dry cloth, store in a dry, dust-free location.
Addresses filter, stabilization, temperature, and battery errors.
Procedure to change between Fahrenheit (°F) and Celsius (°C).
Details battery type, opening/closing the compartment, and safety.
Product is calibrated at manufacture; periodic calibration not required.
Details coverage, exclusions, repair options, and customer support contact.
Specifies temperature ranges, accuracy, resolution, and operating environment.
Details battery/service life, warranty, and adherence to standards.
Explains device symbols for operation, storage, and handling.
Lists compliance with major standards for thermometers and EMC.
Details additional standards, EMC precautions, and RF interference warnings.
Provides guidance on immunity test levels and emissions compliance.
Details test frequencies, bands, modulation types, and parameters.











