Read the manual thoroughly and understand all of the instructions, cautions, and warnings before using this equipment. If any section of the manual is not understood, contact your nearest authorized dealer, or contact Generac Customer Service at 1-888-436-3722 (1-888-GENERAC), or www.generac.com with any questions or concerns.
Generator Starts After an Outage But Does Not Transfer Power
Home standby systems with an automatic transfer switch (ATS) should automatically transfer power to the generator when an outage is detected. The ATS requires two things to transfer power automatically: Voltage available from the generator and voltage on the transfer circuit (194/23 wires).
Note: Generac support does NOT recommend untrained end users attempt to modify or service internal generator wiring. Generac independent authorized service dealers are trained to service Generac generators and can be contacted using the dealer lookup tool on Generac.com: How Can I Find a Generac Service Dealer in My Area?
If power transfer does not occur, check the following:
- The 23 wire is the signal ground side of the transfer circuit and is controlled by the generator control panel. This wire is grounded when a generator automatically starts after a power loss.
- The 194 wire provides 12 VDC to the ATS and is always powered.
2. Confirm that the generator's Main Line Circuit Breaker (MLCB) is in the ON position. If this is in the OFF position when the generator is in AUTO mode, then the generator will start, but the ATS will not transfer power because it needs generator power to move to the standby position.
3. In some scenarios, manually operating the transfer switch can provide power the home, although it does not resolve the underlying issue, and should only be performed after consulting with and understanding the generator's user manual: How do I manually operate an automatic transfer switch? 
