This manual introduces the use and precautions of the Philips electric shaver HQ422, HQ420 models.
This manual explains how to insert three R6 AA 1.5‑V batteries, operate the shaver, and perform regular cleaning and maintenance. It includes specific guidance for the HQ422 model’s trimming function and details the accessories available.
Safety and care information cover operating temperature limits, environmental disposal of batteries, warranty contact details, and troubleshooting steps for common issues such as reduced shaving performance or a non‑responsive on/off switch.
| Power source | Three R6 AA 1.5‑V batteries |
|---|---|
| Shaving time (new batteries) | 60 minutes |
| Operating temperature | 5 °C to 35 °C |
Slide the lid of the battery compartment backwards, open it, place three AA batteries matching the polarity markings, then close the lid.
With three new batteries the shaver provides about 60 minutes of shaving time.
Check the batteries first; if they are empty, replace them. If the problem persists, refer to the troubleshooting section.