• Code: H2-4101
• Display: Paper jam inside of mailbox. Remove paper
• Description: Mailbox Entrance sensor actuator does not return after a paper covers it. IOT Exit Roller grabs the paper. Or Mailbox Feeding Motor Stops. Or Mailbox Entrance Sensor damaged or harness damaged. Or Mailbox Main Board damaged.
• Remedy: 1. Check Jam Occurrence in IOT. - If the IOT roller is grabbing the paper, it’s IOT fault. 2. Check Mailbox Main Board Harness connection. 3. Check Mailbox Entrance operation & harness connection. 4. Check Mailbox Feeding Motor Harness connection and operation. 5. If the same problem happens after checking 1-4, replace the mailbox main board. 6. If the same problem happens after checking 5, replace the mailbox harnesses.

• Code: H2-4102
• Display: Paper jam inside of mailbox. Remove paper
• Description: Initialization started with Jammed paper covering Mailbox Entrance Sensor. Paper exists covering Mailbox Entrance Sensor. Or Mailbox Entrance Sensor Damaged or harness connection not well. Or Mailbox Main Board damaged.
• Remedy: 1. Check if there is a jammed paper inside Mailbox. 2. Check Mailbox Main Board Harness connection. 3. Check Mailbox Entrance operation & harness connection. 4. If the same problem happens after checking 1-3, replace the mailbox main board. 5. If the same problem happens after checking 4, replace the mailbox harnesses.

• Code: H2-4200
• Display: Paper jam in front of bin 1. Remove paper
• Description: Mailbox Bin 1 Exit Sensor doesn’t turn on after a paper entered Mailbox. IOT Exit Roller grabs the paper. Or Mailbox Feeding Motor Stops. Or Mailbox Entrance Exit Sensor damaged or Mailbox Gate doesn’t work or harness damaged. Or Mailbox Main Board damaged.
• Remedy: 1. Check Jam Occurrence in IOT. - If the IOT roller is grabbing the paper, it’s IOT fault. 2. Check Mailbox Main Board Harness connection. 3. Check Mailbox Exit-related Sensors operation & harness connection. 4. Check Mailbox Feeding Motor Harness Connection and operation. 5. Referring to Upper Diverter Fault, check the Upper Diverter’s operation. 6. Referring to Lower Diverter Fault, check the Lower Diverter’s operation 7. If the same problem happens after checking 1-6, replace the mailbox main board. 8. If the same problem happens after checking 7, replace the mailbox harnesses.

• Code: H2-4201
• Display: Paper jam at mailbox bin 1. Remove paper
• Description: Mailbox Bin 1 Exit Sensor doesn’t turn off after the sensor turned on. IOT Exit Roller grabs the paper. Or Mailbox Feeding Motor Stops. Or Mailbox Entrance Exit Sensor damaged or Mailbox Gate doesn’t work or harness damaged. Or Mailbox Main Board damaged.
• Remedy: 1. Check Jam Occurrence in IOT. - If the IOT roller is grabbing the paper, it’s IOT fault. 2. Check Mailbox Main Board Harness connection. 3. Check Mailbox Exit-related Sensors operation & harness connection. 4. Check Mailbox Feeding Motor Harness Connection and operation. 5. Referring to Upper Diverter Fault, check the Upper Diverter’s operation. 6. Referring to Lower Diverter Fault, check the Lower Diverter’s operation 7. If the same problem happens after checking 1-6, replace the mailbox main board. 8. If the same problem happens after checking 7, replace the mailbox harnesses.

• Code: H2-4202
• Display: Paper jam at mailbox bin 1. Remove paper
• Description: Initialization started with Jammed paper covering Mailbox Bin1 Exit Sensor. Paper exists covering Mailbox Exit Sensor. Or Mailbox Exit Sensor Damaged or harness connection not well. Or Mailbox Main Board damaged.
• Remedy: 1. Check if there is a jammed paper on the feeding path of Mailbox. 2. Check Mailbox Main Board Harness connection. 3. Check Mailbox Bin1 Exit-related sensors’ operation & harness connection. 4. If the same problem happens after checking 1-3, replace the mailbox main board. 5. If the same problem happens after checking 4, replace the mailbox harnesses.

• Code: H2-4300
• Display: Paper jam in front of bin 2. Remove paper
• Description: Mailbox Bin 2 Exit Sensor doesn’t turn on after a paper entered Mailbox. IOT Exit Roller grabs the paper. Or Mailbox Feeding Motor Stops. Or Mailbox Entrance Exit Sensor damaged or Mailbox Gate doesn’t work or harness damaged. Or Mailbox Main Board damaged.
• Remedy: 1. Check Jam Occurrence in IOT. - If the IOT roller is grabbing the paper, it’s IOT fault. 2. Check Mailbox Main Board Harness connection. 3. Check Mailbox Exit-related Sensors operation & harness connection. 4. Check Mailbox Feeding Motor Harness Connection and operation. 5. Referring to Upper Diverter Fault, check the Upper Diverter’s operation. 6. Referring to Lower Diverter Fault, check the Lower Diverter’s operation 7. If the same problem happens after checking 1-6, replace the mailbox main board. 8. If the same problem happens after checking 7, replace the mailbox harnesses.

• Code: H2-4301
• Display: Paper jam in front of bin 2. Remove paper
• Description: Mailbox Bin 2 Exit Sensor doesn’t turn off after the sensor turned on. IOT Exit Roller grabs the paper. Or Mailbox Feeding Motor Stops. Or Mailbox Entrance Exit Sensor damaged or Mailbox Gate doesn’t work or harness damaged. Or Mailbox Main Board damaged.
• Remedy: 1. Check Jam Occurrence in IOT. - If the IOT roller is grabbing the paper, it’s IOT fault. 2. Check Mailbox Main Board Harness connection. 3. Check Mailbox Exit-related Sensors operation & harness connection. 4. Check Mailbox Feeding Motor Harness Connection and operation. 5. Referring to Upper Diverter Fault, check the Upper Diverter’s operation. 6. Referring to 12-945, 12-955 Check the Lower Diverter’s operation 7. If the same problem happens after checking 1-6, replace the mailbox main board. 8. If the same problem happens after checking 7, replace the mailbox harnesses.

• Code: H2-4302
• Display: Paper jam at mailbox bin 2. Remove paper
• Description: Initialization started with Jammed paper covering Mailbox Bin2 Exit Sensor. Paper exists covering Mailbox Exit Sensor. Or Mailbox Exit Sensor Damaged or harness connection not well. Or Mailbox Main Board damaged.
• Remedy: 1. Check if there is a jammed paper on the feeding path of Mailbox. 2. Check Mailbox Main Board Harness connection. 3. Check Mailbox Bin2 Exit-related sensors’ operation & harness connection. 4. If the same problem happens after checking 1-3, replace the mailbox main board. 5. If the same problem happens after checking 4, replace the mailbox harnesses.