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Heating  Heating

Brand

Lochinvar Lochinvar List all brands

Type:

Cadet CDN070 view Cadet CDN070 List all types

Error code:

E21
List all errors


Error code: E21

Cause of error code E21

One or both of the outlet sensors has opened or shorted.

Solution for error code E21

- Check the sensor and its associated wiring. Repair or replace the sensor or wiring if damaged.
- Measure the resistances of the sensors. Replace if necessary.


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