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IMPORTANT: When a boat or new drive is first put into service, the LED may initially indicate that the protective current is not
being supplied through the MerCathode anode. This condition is normal, and, in such cases, the LED may flash for a period.
The light from the LED will become steady after the boat is moored for a period of eight hours without operation.
MerCathode LED Codes
MerCathode LED
Solid green
2 flashes per
second
1 flash per 4
seconds
LED not on
Power Package Exterior Surfaces
1.
Spray the entire power package at recommended intervals with Corrosion Guard. Follow the instructions on the can for
proper application.
Tube Ref No.
Corrosion Guard
120
2.
Clean the entire power package. External surfaces that have become bare should be repainted with the recommended
primer and spray paint at recommended intervals.
Description
Mercury Light Gray Primer
Mercury Phantom Black
Boat Bottom Care
To achieve maximum performance and fuel economy, the boat bottom must be kept clean. Accumulation of marine growth or
other foreign matter can greatly reduce boat speed and increase fuel consumption. To ensure best performance and efficiency,
periodically clean the boat bottom in accordance with manufacturer's recommendations.
In some areas, it may be advisable to paint the bottom to help prevent marine growth. Refer to the following information for
special notes about the use of antifouling paints.
Painting Your Power Package
IMPORTANT: Corrosion damage that results from the improper application of antifouling paint will not be covered by the limited
warranty.
1.
Painting the boat hull or transom: you may apply antifouling paint to the boat hull and transom. However, observe the
following:
IMPORTANT: Do not paint anodes or MerCathode System reference electrode and anode. Paint will render them
ineffective as inhibitors of galvanic corrosion.
IMPORTANT: If antifouling protection is required for the boat hull or transom, you can use copper‑based or tin‑based
paints where not prohibited by law. If using copper‑based or tin‑based antifouling paints, observe the following:
90-8M0113859
DECEMBER 2015
eng
Definition
No fault. The controller is working properly.
There is an open or short in the reference
electrode/anode, a high temperature, or a
sensed reference electrode voltage in
excess of 1.4 V.
The reference voltage is outside of the
normal, expected range: either above 1.04 V
or below 0.86 V.
There is no power to the controller or both
the reference electrode and anode are
open.
Description
Required Action
No action is necessary. This is the normal LED
indication for a properly functioning MerCathode system.
The system is not operating correctly. Contact your local
Mercury Service dealer for assistance.
The system is stabilizing. Monitor it for further change.
•
If the boat is out of the water, no action is
necessary.
•
Check the battery voltage; it must be 9 V or higher.
•
Check the 5‑amp fuse in the controller wire
harness.
•
If further assistance is required, contact your local
Mercury Service dealer.
Where Used
Painted surfaces
Painted surfaces
Section 4 - Maintenance
Part No.
92-802878 55
Part Number
92‑802878 52
92‑802878Q 1
Page 77
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