EOTech 553 - Manual (Page 29)

2.3 Troubleshooting
The following section outlines measures the operator can take in the event of the named failure.
Failure: The sight will not power up:
Corrective Action 1: Ensure the batteries are inserted properly according to the
diagram on the bottom of the battery cap.
Corrective Action 2: Replace the batteries with new, unused batteries that contain a
full charge.
Corrective Action 3: Inspect the battery contact points in both the battery cap and on
the sight itself. These contact points are spring loaded and surrounded by a rubber
gasket that may catch the spring. Move the contact points around and ensure they are
at or above the surface of the rubber gasket.
Corrective Action 4: Reset the electronics by removing any source of power for
approximately two minutes. This will allow a capacitor in the electronics housing to
drain of power, resetting the electronics. Reconnect the batteries and operate the sight
as normal.
Corrective Action 5: Check the battery contacts for corrosion or wear. Clean the contacts.
Corrective Action 6: Turn in the sight for unit level maintenance.
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