Raymarine L470 instruction manual Servicing a Thru-Hull Transducer, How to Contact Raymarine

The speed or log readings are wrong –

1.The paddle wheel on the transducer may be fouled. Clean the parts as described in the section on “Cleaning Instructions.”

2.Check the speed calibration. Use the item for “Speed Cal” on the System Setup Menu. See the instructions in Section 2.

Servicing a Thru-Hull Transducer

If your boat has a thru-hull transducer, you can service it without removing the boat from the water. The sensor(s) are mounted in a cylindrical plug in the center of the transducer assembly. If necessary, you can remove this plug by working from the inside of the boat. The transducer housing includes a check valve to minimize the water intrusion when removing the insert. A small amount of water will enter the boat. This is normal. Immedi- ately after removing the speed insert, place the dummy insert in the transducer housing. Do not leave the transducer without the speed or dummy insert in place.

How to Contact Raymarine

For marine product and services information

Visit the Raymarine World Wide Web site for the latest information on the newest Raymarine electronic equipment and systems:

www.raymarine.com

For accessories and parts

Many Raymarine accessory items and parts can be obtained directly from your authorized Raymarine dealer. However, if you are in need of an item not available from the retailer, please contact Raymarine Customer Service at 1-800-539-5539, extension 2333 or (603) 881- 5200, extension 2333. Customer Service is available Monday through Friday, 8:15 a.m. to 5:00 p.m. Eastern Standard Time or Eastern Daylight Savings Time.

If placing an order, please have the Raymarine item or part number ready when calling. (See the Optional Accessory List on page 2 in this manual.) If you are not sure which item is appropriate for your unit, you should first contact the Technical Support Department at 1-800- 539-5539, extension 2444 to verify your requirements.

Maintenance and Troubleshooting 87