Stowe Navigator 1 Erratic Readings

luckybeanz

Well-Known Member
Joined
20 Jun 2018
Messages
81
Location
Burrianna - Spain
www.luckybeanz.com
I recently redid some of my wiring with much help from these forums http://www.ybw.com/forums/showthread.php?508969-Wiring-advice-for-a-Southerly-115/page4&highlight=southerly+wiring

Though I now seem to have an issue with the depth sounder. When at anchor or in a mooring, it picks up the depth and the reading seems to be correct on both the inside and the outside station. Though if I then turn on the engine, it briefly looses the reading and then shows a very high number (Much deeper than it should be) which changes frequently. I had thought this was due to the regulator not regulating the current from the alternator correctly (See post linked above) as the manual of the depth sounder says that if it shows a depth that is too shallow it is likely not getting enough power, so the reverse stands to reason. Though yesterday whilst out sailing after the engine was turned off, it would still show erratic figures that where too deep, in addition the inside and the outside station would show different depths. To try reset it, I turned it off and then back on again, whilst we were moving it was unable to pick up the depth and just showed 0.0 until the wind died and we just sat floating in one area ( chart said depths of about 40m) when it again picked up a depth that was wrong.

Now sitting typing this at anchor, if I turn on the depth sounder it picks up the depth and shows the correct reading 3m on both stations.

Thanks in advance for any advice?
 
My Stowe did some similar odd things. Checked the supply voltage - fine. Checked all other wiring - fine. Tried different transducer - no difference. In the end it turned out to be the supply - the voltage looked fine, but when it was drawing there cannot have been enough of a connection. Worth running a different supply, with different connections, just to eliminate this. Probably also worth remaking the transducer connections.
 
I am replacing my Stowe kit next summer as they are beginning to feel their age and are getting a bit flaky.
 
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