That wriggle back and forth sounds like low voltage or a failed sector in the motor winding. Along with battery charging issues the low voltage could be caused by corroded connections or wires. It could also be extra load on the motor from friction but if it goes back and forth I lean towards voltage/winding issues.
The company I work for does a significant amount of environmental testing on wire wound assemblies often made with very fine wire. Any chlorides (salt) present when the windings are exposed to water accelerates corrosion significantly. I am often surprised on how far the corrosion damage will work/wick into a coated or encapsulated assembly and not be visible even under 20X magnification. Martin DeYoung Calypso 1971 C&C 43 Seattle [Description: Description: cid:D1BF9853-22F7-47FB-86F2-4115CE0BAF2F] From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Nate Flesness via CnC-List Sent: Monday, July 13, 2015 5:15 PM To: cnc-list@cnc-list.com Cc: Nate Flesness Subject: Stus-List solar vent wiggles, doesn't rotate My Nicro 4" solar vent, maybe 4 years old, would not run this season. I replaced the NI-MH C cell, left it switched off for a couple days to charge in the sun, and turned it on - it wiggles back and forth a little, but doesn't rotate - same as the with the old battery. Ideas? solutions? Thanks Nate "Sarah Jean" 1980 30-1 Lake St. Croix Hudson WI and Tartan 31 SIskiwit Bay Marina Lake Superior
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