tag:blogger.com,1999:blog-1772469946571497931.post805756425376598671..comments2024-01-18T01:32:42.588+00:00Comments on Halfie: Mini mayhem at Braunston and visitors from homeUnknownnoreply@blogger.comBlogger2125tag:blogger.com,1999:blog-1772469946571497931.post-77269635820408136522016-04-30T00:34:20.514+01:002016-04-30T00:34:20.514+01:00Dave, thanks for that tip. The relay unit looks w...Dave, thanks for that tip. The relay unit looks well sealed, but I'll have a go at cutting it open.Halfiehttps://www.blogger.com/profile/00167481543065324357noreply@blogger.comtag:blogger.com,1999:blog-1772469946571497931.post-59972848034223912742016-04-30T00:33:16.423+01:002016-04-30T00:33:16.423+01:00Dave Ward commented:
Relay contacts get burned (p...Dave Ward commented:<br /><br />Relay contacts get burned (particularly if they are switching heavy loads), and they can also oxidise if not used for some time, meaning they won't always pass small currents. See if you can get it apart - a good clean with some fine abrasive paper usually works wonders! <br /><br />In my days in the telecoms industry many systems had "wetting" circuits, which deliberately passed a small current through relay contacts in order to keep the oxidisation at bay. Halfiehttps://www.blogger.com/profile/00167481543065324357noreply@blogger.com