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Old 09-11-2012, 01:14 PM   #1
Join Date: Dec 2009
Posts: 18
Radar Woes

I have a Furuno open array radar that dies after about 5 minutes of operation. Operation starts up normally with the green power light lit on the control/power box. All of a sudden, the monitor goes blank, the radar stops revolving and the green power light goes off.
No fuses or breakers blow, and the unit can be turned on again right away, but will, once again, die after 5 minutes.
Any suggestions?

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Old 09-11-2012, 01:30 PM   #2
skipperdude's Avatar
City: Whittier AK
Country: USA
Vessel Name: Apache II
Vessel Model: 1974 Donald Jones
Join Date: Oct 2007
Posts: 3,147
Bad magnatron??
Call furuno.
West coast. 1-360-834-9300
East Coast. 1-410-479-4420


If you can't repair it maybe it shouldn't be on the boat
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Old 09-11-2012, 03:31 PM   #3
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City: Blaine
Vessel Name: White Star
Vessel Model: Canoe Cove
Join Date: Jan 2008
Posts: 79
If you have a good volt meter and know how to use it I would check the input voltage to the radar. Is it 12.6-13.8 but drops below 11.0 volts when turned on? Possible undersized wire or corroded connection. If it has a removable connector between the display and the antenna then also check that for any damaged or corroded pins If this checks out then the installation is probably good and a call to Furuno or a local Furuno authorized agents would be in order.

Good luck,

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Old 09-11-2012, 05:10 PM   #4
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City: Friday Harbor, WA
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Vessel Name: Hobo
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I'm with Skipperdude. Call Furuno in Camas, WA. Great customer service.
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Old 09-11-2012, 05:28 PM   #5
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Join Date: Jun 2008
Posts: 2,410
I am guessing it's the motor that turns the magnetron. I have had 2 Furunos, and each one burned out a motor. Plus several at our marina.
But yes call Furuno or a repair facility and get their input.
If you have to replace the motor, sit down when you ask the price.
Jay Leonard
Attitude Adjustment
40 Albin
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