vettman
I have a 2 year old Guardian 16 KW generator; model 55040 running on NG. The red alarm light is on but there is no alarm log entry other than the ones that were set at the factory during there pre-delivery checks. I've tried clearing the alarm using the procedure specified in the owner's manual, but the light is still illuminated. The display screen in the debug menu just shows two bands of black blocks. The unit ran its weekly test a couple of hours ago. It starts fine in manual mode. Unit has 146 hrs if run time. If anyone has any suggestions as to what might be going on, or how to troubleshoot further, please let me know.

Thanks
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Hotwire
Not sure if this will work, but what about pulling out the 7.5 amp fuse for about 10-20 secs.
Did you go through the menu to the reset/maintenence screen.
I also was wondering what all the blocks where in the debug screen.
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vettman
Red light on my 17KW Guardian gen

Pulling the fuse did not correct the problem. No problem was ever set in the alarm log. FYI, I believe maintenance "warnings", e.g., change oil and filter, check battery, etc. only set the yellow light, not the red. Approx. 24 hours after noticing the red light, it went out on its own.

The display with the two bars of black rectangles is something the tech would when troubleshooting--this according to one of the Ziller "pros" I spoke with on the phone. The unit ran its normal Sat. test, and everything appeared to be normal, and no more red light.
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