1. Verify that the GENERATOR source acceptable light is on. The transfer switch will not retransfer the load to the generator until the generator output is acceptable. If the light is off, verify that the circuit breaker for the generator feed is ON.

2. Wait 15 seconds. There is a 15-second delay after the generator output becomes acceptable to permit the generator to warm up.

3. If the GENERATOR source acceptable light still does not come on, confirm the generator is running and if not, verify the generator is automatic, check the engine start wires connection, check the generator's battery, and if all is okay there's a possibility that the controller is bad. (Replacement controller  part number 842363 For “Standard” Top Right Corner Mount and 842977 For 165P PTLC  and 165L Load Center, Bottom Left Corner Mount)

Published for:ASCO Power Technologies USA