What Does This Error Mean?

A wireless charging pad getting excessively hot is usually caused by poor alignment between the phone and charger coils, which wastes energy as heat. Center the phone precisely on the pad and move the charger off soft surfaces like beds and sofas.

Affected Models

Anker wireless chargers
Belkin wireless chargers
Samsung wireless chargers
Apple MagSafe chargers
Any Qi or MagSafe charging pad

Common Causes

Phone coil misaligned with charger coil — energy transfer inefficiency generates excess heat
Charger sitting on a soft surface (bed, sofa cushion) that traps heat underneath the pad
Phone running power-intensive apps while charging, adding CPU heat to charging heat
Thick phone case adding thermal insulation between the phone and charger
Defective charger coil with higher-than-normal resistance generating excess heat

How to Fix It

Place the charger on a hard, flat surface.

Soft surfaces like beds, sofas, and fabric prevent heat from dissipating from the underside of the charging pad. Move the charger to a hard surface — a desk, nightstand, or tile — where airflow can circulate around the pad. This alone can reduce pad temperature by 10–15°C.
Center the phone precisely on the charging coil.

Misaligned coils waste significant energy as heat because inductive coupling efficiency drops sharply with distance. Align the phone coil (usually centered behind the phone) directly over the charger coil indicator. Most wireless chargers have a center marking — use it.
Remove a thick phone case.

Cases that increase the gap between the phone coil and charger coil force the charger to work harder, generating more heat. Remove the case for charging, or switch to a thin wireless-charging-compatible case under 3 mm thick.
Do not use the phone while wirelessly charging.

Using the phone for navigation, gaming, or video while charging simultaneously generates both CPU heat and charging heat in a confined space. Place the phone face-down or put it in airplane mode during charging if heat is a concern. Temperature warnings from the phone are safety protections — stop charging and let the phone cool before continuing.
Use a lower wattage charger for overnight charging.

A 5W or 7.5W wireless charger runs significantly cooler than a 15W charger. For overnight charging where speed does not matter, use a lower wattage pad. Cooler charging also extends battery longevity compared to repeated fast-charge heat cycles.

When to Call a Professional

If the pad becomes too hot to touch within minutes of placing a phone (even when aligned and on a hard surface), the charging coil inside the pad may have a winding defect. Replace the charger.