I have a Garmin 3210 MFD unit with a Garmin radar hooked in. Today while at dockside with the radar even on, I received and error code 8 on the MFD indicating a radar problem. What does error code 8 mean? What's wrong with the radar?
Guys, I'm working as a Garmin technician in one of the Garmin dealer shop any way this 8 error is motor communication error 1- check the connection between the processor pcb and and the motor controller pcb 2- check the cable connections
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Re: Garmin radar error code 8
. You can try a hard reset: Unplug unit from power mains and remove all cables from unit. Wait about 30 minutes and replug unit to power supply and redo the cabling. Switch on the unitand see if it still displays same message :
If it still displays:
If a radar errorcode is received and followed by a number on the GPS device, please call 1-800-800-1020..Its company support number..
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There are a couple of things that could cause the radar to power off when going into the transmit mode.
The first thing to eliminate is input power. When in the standby mode the radar draws less current than in the tx mode so if you have low voltage for whatever reason, that could cause a shut down. Check all connections and measure the voltage to the unit while it is on.
A problem with the antenna motor or gear box could also be the problem. The antenna doesn't rotate unit the unit is switched to the tx mode. You would need to remove the dome cover (with unit off) and verify that the array will turn freely by hand. Typically, a bad motor will not cause a shut down but a physical obstruction could.
Focus on the power issue because that's the most common problem. Be aware that you need to measure the voltage as close to the radar display as possible and watch the voltage as you switch the radar from standby to transmit for a quick dip in voltage.
Either a weak magnetron, water in wave guide or most likely radar settings are not right.
You have an 1834C, so a 4KW dome, right?
Radar antenna should be set to type "B" in Radar Set-Up menu
Access this menu by holding the Menu button during turn on and then choosing Installation Mode, allowing access to Installation Set Up Menu, where the Radar Set Up Menu is located. Be sure to do Optimize Radar, while you are in there.
Learn to use Sea Clutter and turn off AC Auto Tune.
The symptom you describe sounds like a case of no radar targets. To further diagnose, put radar on the longest range and turn Gain to full, Sea Clutter to Minimum, Rain Clutter to Minimum, and observe the screen. The presence of "grass" or evenly distributed clutter indicates that the receiver and cabling is good and the radar may not be transmitting. No transmit is caused by a bad magnetron or a bad modulator in the antenna, or depending on model there is still an outside chance that the power supply in the display has failed.
depending on which radar it is, it may be the video coax inside the radar cable. Otherwise possibly your magnetron or mic. Try calling mid-shore electronics @ 410-228-7335 they may be able to assist you.
My husband moved the boat slightly and it seemed to correct the radar screen somewhat. He is working on the whole boat at present so didn't want to take it completely for a drive down the river. If we have further problems we may call in or use the web site.
The rest of the wires are for interfacing (letting the unit 'talk') with other devices such as radar or GPS. These wires/colors are pretty standard and defined by NEMA (National Electrical Manufacturers Association). You need wiring diagrams for the devices to hook them up. For fun, see where 'nema' takes you with Google.
It sounds like voltage loss could be your issue. You need to find the "Y" cable under the dashboard and measure the voltage at the point where it connects to the main 12V supply. Keep the meter on and then spin up the radar. If there is a fuse (there should be) make sure you are measuring on the radar side of the fuse. If the voltage drops off as the radar slows, you have found your problem. If the voltage stays constant and the connections are sound at the terminations in the radar pedestal, I would recommend you send the pedestal in to Raymarine.