Controller shows E17, generator will not transfer load even though it is running

Safety first: De-energize both utility and generator sources. Lock out and tag out breakers. Confirm with a meter that the ATS is not energized.

• Inspect ATS mechanism: Open the ATS enclosure and visually inspect the mechanical transfer mechanism for broken parts, obstructions, or misalignment.
• Check position switches: Locate the auxiliary contacts or micro-switches that indicate SOURCE 1, SOURCE 2, and NEUTRAL positions. Verify that actuators engage the switches fully when the mechanism moves. Replace any damaged switches.
• Verify wiring to generator controller: Trace the position feedback wires from the ATS to the Honda generator controller. Tighten any loose terminals and repair damaged conductors.
• Manual operation test: With power off, manually operate the ATS (if design allows) and confirm that the position switches change state correctly with a continuity tester.
• ATS board replacement: If switches and wiring are good but E17 persists, the ATS control board or the generator controller input may be faulty and require professional service.