Yamaha — G.F.C.I. Receptacle Test
Testing & diagnosis
From a Yamaha owner's manual covering: EF1600, EF2600, YG2600. Check it applies to your exact model before use.
Before you start
- Do not operate the generator with a faulty G.F.C.I. circuit. Electric shock could occur.
Procedure
- Start the engine.
- Turn the AC switch (N.F.B.) to the ON position.
- Press the test button, then check the position of the reset button.
- If G.F.C.I. operation is correct, push in the reset button; if incorrect consult a Yamaha dealer.
Specs & values
- Reset button pops out = correct; stays in = incorrect
Source: Yamaha owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.