What E21 means
The E21 error code means that there is either a problem related to the water level reading or with the thermostats inside the machine. In the case of the water level reading, try restarting the machine. If the problem is faulty thermostats, there could be a blockage causing poor airflow. For expert
Which appliances this applies to
Documented by Candy for its washing machines generally, not for a specific model.
Frequently asked questions
What does Candy E21 mean on a washing machine?
The E21 error code means that there is either a problem related to the water level reading or with the thermostats inside the machine. In the case of the water level reading, try restarting the machine.
Where these facts come from
- Candy error code page retrieved 3 November 2026
Every fact on this page was read from the manufacturer's own product page or document at the address shown, and is labelled with how far it has been checked. Last updated 3 November 2026. Read how we source data, or report an error.