Some small electrical issues

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   A multimeter is a must in the toolbox.
Test if the bulb/diode is OK by using the continuity tester (-I<-). It will show the number 1, and when the probes touch each other you will hear a signal sound and the number will change to something like 212. If you disconnect the + and - wires, and touch the probes at the wire-ends, you will get a "1" if no current is passing the bulb. If the bulb is LED, try the +/- probe on both wires.
LED stands for "Light Emitting Diode", and a diode is a gizmo, that only permits the current to travel in one direction. On some new diodes, you can connect the +/- terminals any way you like, but as a rule, the wires have to be mounted correctly.
To sum it up: If a LED shows no light, try to reverse the polarity.

A reverse of polarity can happen when the mast-light is reassembled.

Edited by Captain Cook - 13 August 2019 at 17:04

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
Captain Cook Members Profile Send Private Message Find Members Posts Add to Buddy List Vice Admiral Joined: 23 May 2006 Location: Denmark Status: Offline Points: 928	Post Options Post Reply Quote Captain Cook Report Post Thanks(1) Quote Reply Posted: 13 August 2019 at 16:59
	A multimeter is a must in the toolbox. Test if the bulb/diode is OK by using the continuity tester (-I<-). It will show the number 1, and when the probes touch each other you will hear a signal sound and the number will change to something like 212. If you disconnect the + and - wires, and touch the probes at the wire-ends, you will get a "1" if no current is passing the bulb. If the bulb is LED, try the +/- probe on both wires. LED stands for "Light Emitting Diode", and a diode is a gizmo, that only permits the current to travel in one direction. On some new diodes, you can connect the +/- terminals any way you like, but as a rule, the wires have to be mounted correctly. To sum it up: If a LED shows no light, try to reverse the polarity. A reverse of polarity can happen when the mast-light is reassembled. Edited by Captain Cook - 13 August 2019 at 17:04
	Freya H400 #27 (2006), 40HP 3JH4E, 2-cabin, 3-blade Flexofold, Aries LiftUp Windvane, Exturn 300, Jefa DD1,Simrad NX40,Icom M603(VHF)+M802(SSB)



Welcome to myHanse.com the forum for Hanse Yachts owners throughout the world.