Alarm Question

Discussion in 'Tech/Mech General' started by lorger, May 18, 2014.

  1. lorger

    lorger Funster

    Joined:
    Jul 11, 2008
    Messages:
    6,190
    Likes Received:
    7,558
    Location:
    Dumfries
    I have a Cobra alarm fitted to my MH and today when I went to get something from it I pressed the fob button to open doors and switch off alarm, both cab doors unlocked but the hab door didn't. This happened once before and then worked so forgot about it, once I unlocked the door with the key it then started to work again so that's the first problem.

    Second problem while I was there I started playing with the alarm to make sure it worked, anyway if I leave a door open and press fob to set alarm it beeps to tell you door is open (sensors on all doors) so this is working as it should. I then tried setting the alarm with all doors closed then unlocked a door with the key, so alarm should still be on I assume. Well the alarm didn't sound until I entered the motorhome is this correct.

    I would have thought the minute the door was open with alarm set it should have went off.
     
  2. canopus

    canopus Funster Life Member

    Joined:
    Nov 27, 2010
    Messages:
    2,825
    Likes Received:
    3,200
    Location:
    Lincolnshire
    I have the same alarm Gerry. Chances are that the hab door does not have a door contact, however once you went inside the van, the inertia sensors probably located somewhere around the dashboard would have been triggered when you moved around.

    Our rear garage doors and bonnet all have door contacts fitted, and there are two inertia sensors on the dash, but not there isn't a contact on the hab door.
     
  3. lorger

    lorger Funster

    Joined:
    Jul 11, 2008
    Messages:
    6,190
    Likes Received:
    7,558
    Location:
    Dumfries
    Hi Ken

    There is a small white sensor on the hab door but couldn't see on on the frame will have a better look, there is also a small white box with two silver sprung rods sticking out. I assume this is to tell when door is closed over. All the garage doors have the same white sensor.

    The same happened when I opened the cab doors no alarm sound until I stuck my hand inside.
     
  4. dave newell lvs

    dave newell lvs Trader-Vehicle Services

    Joined:
    Oct 31, 2008
    Messages:
    2,513
    Likes Received:
    3,318
    Location:
    Telford, Shropshire
    Most alarms have a short delay between opening a door and sirens going off. Its deliberate to allow you a chance to disarm the alarm by alternative means (electronic key/code number to keypad) if your fob fails to work because of a flat battery for example.

    Try reading the instructions, they usually give details of operations, functions and inbuilt delays.

    D.
     
    • Like Like x 1
  5. Tea Bag

    Tea Bag Funster

    Joined:
    Nov 3, 2013
    Messages:
    1,157
    Likes Received:
    1,932
    Location:
    Portugal
    Hi.
    Some one has to say this,you have probably already done it. Squirt of WD 40 or ?. whatever in/on the mechanism. Had this trouble with a motor the other way around when locked up...... Tailgate remained unlocked,had parked it up all over,with some high value gear in,lucky me found it first.
    Tea Bag
    PS. Oxydi....whatsit caused it to stick.
     
    Last edited: May 18, 2014
    • Like Like x 1
  6. canopus

    canopus Funster Life Member

    Joined:
    Nov 27, 2010
    Messages:
    2,825
    Likes Received:
    3,200
    Location:
    Lincolnshire

    The Cobra instruction booklet is absolutely crap in terms of enlightening the end user as to the idiosynchratic operation of its alarm system :thumb:
     
    • Like Like x 2
  7. paulmold

    paulmold Read Only Funster

    Joined:
    Jun 15, 2009
    Messages:
    895
    Likes Received:
    301
    Location:
    North Wales
    Totally agree but they are very helpful of you ring them
     
Loading...

Share This Page