Troubleshoot

Does the FAOM Module have power?

• Verify that the LEDs are powered up. (LED4, LED5, and LED6)

• Verify SMC-P1 has 24VAC between Red and Black
• Verify SMC-P1 has 3.2 - 3.9 VDC between Blue and Orange

• If SMC-P1 does not have VAC or VDC, go to the adapter board above the Symbio Unit Controller Module. Verify that AB-J3 has 24VAC between Red and Black and has 3.2-3.9VDC between Blue and Orange. 
• If AB-J3 is not receiving voltage, verify VAC from AB-J15 (Yellow & Brown) and VDC from AB-J18 (Blue & Orange).

• If AB-J15 (Yellow & Brown) is not receiving VAC verify PPF72/PPM72 and PPF3/PPM3

• If AB-J18 (Blue & Orange) is not receiving VDC, verify UC-P3.

Does the Factory-Installed module have the address plug?

• The Stepper Motor Controller is factory-installed and includes an address plug pre-installed on J9. The factory plug is already configured for address 79.
• The rotary dials should be set to 00.
• If the Stepper Motor Controller says "Not Communicating" on the mobile phone app under Tools > Service, try the steps below. 
• If the address plug is securely connected and you have verified the address on the plug, remove the plug and set the rotary dials to 79 (SW1 to 7 and SW2 to 9). 
• Cycle power to the unit or reset the IMC link through the mobile phone app. 
• Go to Tools > Service > scroll down to IMC LINK RESET.

Is the UC module configured?

• To verify the communication status, go to Tools > Service in your mobile phone app.
• When it says Communicating, there should be no active alarms for the Stepper Motor Controller.
• When it says 'Communicating - Not Configured,' it means the Stepper Motor Controller is communicating, but there is no configuration associated with it. This will show active alarms.
• You must configure the SMC under Settings > View Configurations> Edit.

Configurations

Alarms

• Diagnostic: Unit Communication Failure
• Stepper Motor Communication Status

WARNING:

Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.