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Keith,
I would recommend connecting a 1N4004 diode across the positive an the ground
terminals of the relay coil. Connect the cathode end of the diode to the
positive terminal and the anode end (the end of the diode with the line om it)
to the negative terminal. this will have no effect when the relay is energized.
When a relay is denergized it generates a spark which can burn the points. The
diode will allow this spark to travel through the diode and dissipate.
Connect to relay negative connection. Connect to the relay positive terminal.
Diodes should be across the terminals of all relays and solenoids.
Ronald Olds
From: keithstewart@bell.net
To: triumphs@autox.team.net
Sent: Thursday, June 16, 2022 11:38:04 AM
Subject: [TR] Electric Fan Relay
I have a 62 TR4 with Trim Line electric fan, Derale fan controller, 30 amp
fuse, and 30 amp NAPA relay. In the past 5 or 6 years, I have likely replaced
the relay six or seven times. The wiring seems pretty straight forward and all
seems in order. I really have no idea where to look next. Any suggestions?
Keith Stewart
keithstewart@bell.net
** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archive
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<html><body><div style=3D"font-family: Times New Roman; font-size: 12pt; co=
lor: #000000"><div>Keith,<br><br>I would recommend connecting a 1N4004 diod=
e across the positive an the ground terminals of the relay coil. Connect th=
e cathode end of the diode to the positive terminal and the anode end (the =
end of the diode with the line om it) to the negative terminal. this will h=
ave no effect when the relay is energized. When a relay is denergized=
it generates a spark which can burn the points. The diode will allow this =
spark to travel through the diode and dissipate.<br></div><div> <!--S=
tartFragment--> =
&nb=
sp; =
&nb=
sp; <img =
src=3D"https://cdn.sparkfun.com/assets/d/6/b/f/a/5171b6bece395ff53c000000.P=
NG" alt=3D"https://cdn.sparkfun.com/assets/d/6/b/f/a/5171b6bece395ff53c0000=
00.PNG" data-mce-src=3D"https://cdn.sparkfun.com/assets/d/6/b/f/a/5171b6bec=
e395ff53c000000.PNG"><!--EndFragment--> </div><div> =
&nb=
sp; =
&nb=
sp; Connect to relay negative con=
nection. &=
nbsp; &nbs=
p; Connect to the relay positive terminal.<br data-mce-bo=
gus=3D"1"></div><div><br data-mce-bogus=3D"1"></div><div>Diodes should be a=
cross the terminals of all relays and solenoids.<br data-mce-bogus=3D"1"></=
div><div><br data-mce-bogus=3D"1"></div><div>Ronald Olds<br data-mce-bogus=
=3D"1"></div><div><br data-mce-bogus=3D"1"></div><hr id=3D"zwchr" data-mark=
er=3D"__DIVIDER__"><div data-marker=3D"__HEADERS__"><b>From: </b>keithstewa=
rt@bell.net<br><b>To: </b>triumphs@autox.team.net<br><b>Sent: </b>Thursday,=
June 16, 2022 11:38:04 AM<br><b>Subject: </b>[TR] Electric Fan Relay<br></=
div><div><br></div><div data-marker=3D"__QUOTED_TEXT__">I have a 62 TR4 wit=
h Trim Line electric fan, Derale fan controller, 30 amp fuse, and 30 amp NA=
PA relay. In the past 5 or 6 years, I have likely replaced the relay six or=
seven times. The wiring seems pretty straight forward and all seems in ord=
er. I really have no idea where to look next. Any suggestions? <br><br> <!-=
-StartFragment--><!--EndFragment--> <br><br>Keith Stewart <br><br>keithstew=
art@bell.net <br><br><br><br>** triumphs@autox.team.net **<br><br>Donate: h=
ttp://www.team.net/donate.html<br>Archive: http://www.team.net/pipermail/tr=
iumphs http://www.team.net/archive<br><br>Unsubscribe/Manage: http://=
autox.team.net/mailman/options/triumphs/ronald.olds@mchsi.com<br></div></di=
v></body></html>
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** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archive
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