Complete bean ejection door assembly. Includes door mechanism, solenoid and spring. May be required if your ejection door doesn't fully open or close properly. This part is only compatible with version 1 Hottop KN-8828 series roasters (KN-8828, KN-8828D, KN-8828B, KN-8828P) which DO NOT have an emergency eject mechanism. General warning: undertaking any repairs may expose you to electrical or mechanical hazards and void any warranty on your unit. Ensure you read the repair procedures and seek qualified assistance if necessary. P21a