[TR] Electric Fan Relay

[keithstewart at bell.net]

Thanks Ron. I assume this would be on the relay 30 and 85 contacts. Is that correct?

 

Keith

 

From: ronald.olds at mchsi.com <ronald.olds at mchsi.com> 
Sent: June 16, 2022 1:03 PM
To: keithstewart at bell.net
Cc: triumphs at autox.team.net
Subject: Re: [TR] Electric Fan Relay

 

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.

                                                              <https://cdn.sparkfun.com/assets/d/6/b/f/a/5171b6bece395ff53c000000.PNG> 

                                                  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 at bell.net <mailto:keithstewart at bell.net> 
To: triumphs at autox.team.net <mailto:triumphs at 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 at bell.net <mailto:keithstewart at bell.net>  



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