Haydn coolant alarm.

Technical questions and answers about the Mazda Bongo

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olebrock

Haydn coolant alarm.

Post by olebrock » Tue Aug 04, 2009 10:13 am

I have just fitted Haydns alarm and it works well but I have a start-up/test 'whiiiiiiiiiiistle' 4-6 secs (also the led stays on) not a 'bleep-bleep-bleep' (or led flash-flash-flash), is this normal ?
It is connected to the cig lighter but I'm thinking of connecting to the red ign wire from the ign switch as from the cig lighter it arms twice :cry: first when turning ign key to ACC then off while the engine starts then on again when ign key returns to RUN.
Can I mute the 'whistle' as my led is in one of the top unused switch blanks and shows up very well - even in strong sunlight.
Maybe 'the Master- Haydn' can advise if I should have a whistle or bleep sound ?
Not a big problem but the whistle when switching on is starting to annoy me.
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westonwarrior
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Re: Haydn coolant alarm.

Post by westonwarrior » Tue Aug 04, 2009 11:56 am

Thats perfectly normal

the 2 "checks" are because the battery uses just about all juice to start the engine

you want the whistle so if you get a problem there is no way you will miss the warning

The sound can be cut down to a blip rather than a long whine by fitting a second screw well below the level sensor and earthing it make sure you use a stainless screw and be carefull to drill with the correct size bit.

The above info came from Haydn when I asked the same question
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missfixit70
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Re: Haydn coolant alarm.

Post by missfixit70 » Tue Aug 04, 2009 12:11 pm

Best bet is to give Haydn a ring, I'm sure he'll be able to answer any questions.
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haydn callow
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Re: Haydn coolant alarm.

Post by haydn callow » Tue Aug 04, 2009 1:01 pm

Interesting......the test Beep/LED flash is normally around 2/3 secs.
The reasons it could be longer are....cold (in the morning) or weak coolant strength.
As mentioned above...you can make it much shorter by putting a 2nd screw in the tank, below and at least 2cms away from the one already fitted and connecting this by a wire to a earth point...(contact me if you do this for a correct grade SS screw).
If you want to "mute" the buzzer...stick a bit of sticky tape over the buzzer hole or bung it up with Bluetack/chewing gum, But personally I would just add the earth wire sensor.
Hope this answers the questions....
http://www.coolantalarm.co.uk
Developer of the Mazda Bongo Coolant loss Alarm
Also BMW Clocks
bigdaddycain
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Re: Haydn coolant alarm.

Post by bigdaddycain » Tue Aug 04, 2009 1:31 pm

My alarm used to "whistle" when i had a slow leak from a coolant pipe... In other words, upon a cold start up when the coolant level was on the lower sensor, topping up to full stopped the whistle :P
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olebrock

Re: Haydn coolant alarm.

Post by olebrock » Tue Aug 04, 2009 4:12 pm

Mny thks for all your quick replies =D> I will take Haydn's suggestion and mute with blu-tac. I dont want to drill another hole in the exp tank.

regards,
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