The hotel often loses power when inserting cards.

There are several reasons why there is frequent power failure when the hotel card is plugged in:

1. It may be that the circuit in the hotel room is out of order, which leads to the instability of the circuit and power failure.

2. It may be that there are too many electrical equipment or too much power in the hotel room, which exceeds the load capacity of the circuit, causing the overload protector to trip automatically and lead to power failure.

3. It may be that the power supply in the area where the hotel is located is unstable, which leads to frequent power failure of the card inserter.

4. It may be due to oxidation of bayonet metal or poor contact of spring after aging, which leads to power failure.

You can try the following methods to solve it:

1. Check the usage of electrical appliances, reduce the usage of electrical appliances or replace low-power electrical appliances.

2. Check the settings of the card inserter, adjust the settings or replace a more suitable card inserter.

3. Contact the hotel staff and ask them to check the circuit fault or unstable power supply.