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Flasher unit failure


Dave the tram
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My indicators stopped working but hazards still ok. After finding no obvious wiring or connector problems (not got a test meter yet), I ordered a new unit, 2 pin, square body same as the old one. Problem solved but failed again after a day or 2.

Questions:

- Is there a difference between the different types of unit, should I try a different type?

- I'm not 100% certain that I replaced the wires the same way. Does it matter, does it simply not work if the wrong way? I think the connectors are labelled P and F.

- Is there any other fault that can make the flasher unit fail?

Cheers

Dave

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10 minutes ago, yorkshire_spam said:

Having played a similar game, despite the expense, I'm now using these in the Spitfire and the Dolomite:

https://www.carbuildersolutions.com/uk/red-2-pin-electronic-flasher-relay

(Dolomite Indicators, Spitfire indicators and hazards)

Silly question but being electronic, does it have any audio indication click buzz etc?

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It clicks like a relay, so you still get the tic-tic noise, but with less "twang" because it's not a bi-metallic like the old ones.

Edit: I should also add.. not long ago when checking the Spitfire over for the MOT I got an intermittent fault on the indicators, changing the flasher seemed to fix it, but then it recurred... it was mucky contacts in the hazard switch not routing to the indicator circuit properly. A squirt of contact cleaner and working the switch in and out a couple of times cured it.

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Mine doesn't make much off a noise, or maybe it's me, so I've bought one of these, £1.99.  It  goes across the flasher and disconcertingly buzzes out off sink with the flasher. Flash, buzz, flash, buzz, etc. If you get one that's too loud you can damp it down with tape. 

buzzer.PNG.2e62ada9e2a24c1fd5c4ba0fe0dfa47e.PNG

Doug

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Great replies - I'll check those hazzard switch contacts, if no joy, buy the better unit recommended above. I'll also get the buzzer. Now my hearing is not so good at the high frequencies (too many rock concerts I guess) I keep leaving indicators on as the self cancelling us still not 100%. I remember as kids my brother, who was already an electronics wizz, making a buzzer for my dad's Standard 10 for the same reason when he reached a certain age. (I also rember it being my job in the back to bang the door pillar to make the trafficator arm drop back on the previous Ford Prefect, but thats giving too much away I suspect!)

Dave

 

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