Alarm problems.

jacquigem

jacquigem

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We have a 2010 Autotrail Mohawk. Alarm fitted 2014 but can't remember who by or find paperwork!
Anyway no sound when setting g or triggering. Internal lights flash when setting and warning lights flash when triggered but no sound.
Have checked fuses in control panel and under dashboard , all good.
Any thoughts on what to try next ?
 
Try finding sirens? Try finding control unit?
Upgrade filing system?
 
Yes, been told maybe near offside lamp, no clue on control unit and after 7 years living in van filing cabinet ditched I am sorry to say.?
 
jacquigem said:
Yes, been told maybe near offside lamp, no clue on control unit and after 7 years living in van filing cabinet ditched I am sorry to say.?
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Yes, paper can be a problem. I scan everything and store on hard drive and backed up to the cloud.
 
There are two types of sounder used in alarm systems, speakers capable of mimicking any sound, and sounders capable of only making one sound. There are three possibilities here. If it’s a speaker it may have blown. To determine if it has put a multimeter set to amperage (continuity) across the two connections at the rear. Depending on impedance normally shown on the speaker you should get an equivalent reading in ohms. Ie an 8 ohm speaker will read 8 ohms. If you get an open reading the speaker has blown, and you will require a speaker with the same impedance as a replacement.
If it’s a sounder capable of only one sound, then actuate the system and check for voltage at the sounder. This will be fused within the control panel, and the glass fuse may have blown.
The third possibility is a faulty panel, try powering the panel down for 10 seconds before powering back up again. If this does not work the fault is not software related and you have a hardware issue requiring either a repair if possible, or more likely a replacement control.
I hope this helps.
Also if the alarm is conditional for insurance, I would notify your insurer in writing of the fault.
 
Thanks Fisherman. I believe the alarm has only ever made one sound so I guess I need to locate the sounder ?
Have been told to look behind offside headlight so will check tomorrow when rain has stopped.
Have checked 2 fuses in control box allocated to alarm and both were sound.
 
jacquigem said:
Thanks Fisherman. I believe the alarm has only ever made one sound so I guess I need to locate the sounder ?
Have been told to look behind offside headlight so will check tomorrow when rain has stopped.
Have checked 2 fuses in control box allocated to alarm and both were sound.
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If it’s a sounder and you get a voltage reading at the sounder after actuating system, then it’s a faulty sounder. Replace with a similar sounder.
 
Yes managed to find a professional with a multimeter and found the siren. Established power getting to the siren so looks like a knackered siren. Alarm system is an Autowatch 695 and been told by them replacement siren only available in uk. So with a 1 month trip planned north up thru France have sourced a cheap movement detector thru amazon.es which I hope will get me thru. Thanks for the help again.
jacquigem said:
Thanks for the help
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The type of system is irrelevant. What’s important is you replace the sounder with a similar 12v version. Sounders come in various sizes measured in M amps.
Normally the sounder is marked with its power in M amps. So long as you don’t fit a sounder with to high a rating in M amps any 12v equivalent will suffice. A safe bet if you cannot find the output would be a 12v 150 MA sounder.

www.ebay.co.uk

CLEARANCE. 12-24V BLACK 150mA 100db SOUNDER, BOXED, BRAND NEW | eBay

24V 150MA SOUNDER. 100DB 12-24V BLACK. CREDIT / DEBIT CARD OVER THE PHONE. CASH ON COLLECTION.
www.ebay.co.uk
 
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Thanks for this, will look into this. I did wonder if the Autowatch technician was being straight with me. Guess you can't trust many these days. We are now on our way back to uk for a visit after maybe 1 month in France so will have a look around.
 
jacquigem said:
Thanks for this, will look into this. I did wonder if the Autowatch technician was being straight with me. Guess you can't trust many these days. We are now on our way back to uk for a visit after maybe 1 month in France so will have a look around.
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I assume that the voltage reading was from a 12v system. If so this sounder may make a different noise when actuated, but should be fine.
 
Check the bonnet alarm switch as I had simillar problem last year and had to replace the slightly coroded switch costing a couple of quid on ebay. Im sure the switched negative on the switch goes to the sounder.
 
Update, got a new sounder fitted in May in uk.

Everything fine, until tonight , set alarm walk away ,it goes off ! . Check all doors windows secured, nothing moving inside , battery levels all OK. Reset and walk away, it goes off. Frustrating. 2010 Autotrail Mohawk , alarm is Autowatch 695 kit 6 (?)
Any and all advice gratefully received.
 
I had a similar problem (different alarm). Contacted the maker and they told me it was caused by the battery in the moho being low causing a setting to be dropped. They gave me a fix that involved disconnecting the alarm waiting; reconnecting and then pressing the button in a particular sequence. No new parts needed.

Now that you know the make/model it is worth looking on line for a manual or emailing the maker.
 
jacquigem said:
Update, got a new sounder fitted in May in uk.

Everything fine, until tonight , set alarm walk away ,it goes off ! . Check all doors windows secured, nothing moving inside , battery levels all OK. Reset and walk away, it goes off. Frustrating. 2010 Autotrail Mohawk , alarm is Autowatch 695 kit 6 (?)
Any and all advice gratefully received.
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False alarms are difficult at times impossible to diagnose. I rarely could trace what caused them. The remedy was a process of elimination. But most FA were sensor based. First it’s important to determine what sensor is going off. All alarm system must indicate the cause of the alarm. Most vehicle systems will give an audible signal informing you what detector this is. If you have a wireless system and you have not replaced the batteries in each detector for more than two years I would try this.
 
Thanks Fisherman, they are old batteries so that could be the problem . Not sure where sensors are in cab doors though Fiat Ducatto cab.
 
jacquigem said:
Thanks Fisherman, they are old batteries so that could be the problem . Not sure where sensors are in cab doors though Fiat Ducatto cab.
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Any doors which register on your dash when opened probably won’t have sensors, the alarm system will use the signal sent from the doors to actuate the system. If your hab door or any other door does not register at your dash when opened they should have wireless sensors.
 
r4dent said:
I had a similar problem (different alarm). Contacted the maker and they told me it was caused by the battery in the moho being low causing a setting to be dropped. They gave me a fix that involved disconnecting the alarm waiting; reconnecting and then pressing the button in a particular sequence. No new parts needed.

Now that you know the make/model it is worth looking on line for a manual or emailing the maker.
Click to expand...

My alarm system has to be reset if the battery is disconnected for servicing etc. This involves reconnecting the battery and then going through a sequence within 10 seconds (I think). I cannot remember this sequence so I would have to 'phone the makers to reset it.

Some members on this forum would say it's a good thing (my alarm not working).
 
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