# Checking heater temperature

## Allow the machine to stand for 15 minutes, and turn the power off and on

1
  Allow the machine to stand for 15 minutes.

2
  Turn the power off and on using the Power button, or unplug the AC power cord and reconnect it.
  If the error message still remains, the machine requires repair.

To use the product safely, please follow the instructions below:

- Insert the plug directly into an AC power outlet.
- Do not connect more than one plug in one outlet.
- Choose a location where the temperature remains between 50°F and 90.5°F
  (10°C and 32.5°C) and the humidity is between 20% to 80% (without condensation).