Samsung Air Conditioner Error Code E170

E170 on a Samsung air conditioner indicates a Fahrenheit and Celsius configuration mismatch. The indoor unit is set to use Celsius, but the remote controller options have not been properly input to reflect that setting. This is a setup or configuration error and does not indicate a hardware failure. Entering the correct Celsius options into the remote controller resolves the error.

No, E170 is not a safety concern. It reflects a configuration mismatch between the indoor unit and the remote controller, not a refrigerant leak, electrical fault, or mechanical failure. The system may restrict normal operation until the error is cleared, but there is no risk to people or property from this error code itself.

Because E170 is a configuration issue rather than a parts failure, there is typically no parts cost involved. If you are comfortable accessing the remote controller settings yourself, the fix is free. If a technician is needed to reconfigure the system during or after installation, expect to pay a standard service call fee, which generally falls in the range of $75 to $150 depending on your location and the service provider.

To fix E170, access the settings or options menu on the remote controller paired with the affected indoor unit and set the temperature unit to Celsius. In multi-zone systems, this must be done for every remote controller linked to a Celsius-configured indoor unit. Once all controllers are correctly configured, the error should clear automatically.

A simple power reset will not permanently clear E170 because the underlying cause is a configuration mismatch, not a temporary fault. The error will return unless the Celsius temperature unit option is properly input into the remote controller settings. Correcting the configuration is the only lasting fix.