Display shows E8 and unit may shut down or limit operation; often associated with very high or low room temperatures.

Safety first: Disconnect power before removing covers. Avoid operating the unit with covers removed except briefly for testing.

Steps to address E8 (temperature protection):

• Verify installation conditions: Ensure the unit is installed within Amana's specified ambient temperature range and not in a confined, unventilated space.
• Check airflow: Confirm that the front grille and return air path are not blocked by furniture, drapes, or covers. Clean the air filter and indoor coil if dirty.
• Inspect room thermistor: Access the control compartment and verify the room thermistor is properly located in the return air stream, not touching hot components. Test its resistance vs. temperature and replace if out of spec.
• Control board evaluation: If the sensor is good and airflow is adequate but E8 persists, the main control board's temperature sensing circuit may be faulty and require replacement.

Do not relocate the thermistor away from the designed sensing area; this can cause inaccurate temperature control and further faults.