Troubleshooting

Possible cause

Dirty lens.

Solution

Clean the lens as described in the Maintenance section.

Possible cause

Discharged battery.

Solution

Insert a charged battery.

Possible cause

Dirty contacts.

Solution

Check for debris and dirt on the terminals in the battery compartment.

Possible cause

Dirty lens.

Solution

Clean the lens as described in the Maintenance section.

Possible cause

The IR illuminator knob (8) is in the position of a minimum transmission power.

Solution

Set the optimum power by turning the IR illuminator knob (8).