Bongo Fury

another roof problem, roof will go up no problem, but will not all ways come down.

it very rearly makes it fully up, just short of the very last micro switch, but cannot understand when it wont come down, finally got it down, not sure if it was the hand brake.

is there owt that will let the roof go up but not apply volts to come back down.

when the roof was up i did hear the motor still trying to drive just the last bit when pressing the switch, but was nothing when trying to drive down, like I say finally got it down but no confidence to but it up again now until I learn a bit more about it.

help please.

Has anybody done one of them good fact sheets, pdf file type thing.

You didn't say how you finally got it down.
When you are going "Up" does the alarm cut off ,if it does this indicates that the microswitch has operated.This microswitch is on the pasenger side at the rear of the rail.
If the switche has operated before you can bring it down you must operate the Unlock Switch in the roof space.This will sound the alarm for a few seconds at a higher than normal rate giveing you time to operate the "Down " switch.If you dont operate the switch quickly enough you have to repeat the operation.
If the switch has not operated,pressing the Down switch should bring the roof down.
When you have lifted the roof you can get access to the feeder cables.Seperating them you can measure the internal resistance of the motors.These should be about 1 or less ohms.Anything much higher would probably indicate that the motors are on their way out,probably the brushes being worn.
mrsam

not sure how it finally worked turned ingnition off and hand brake on off on.

when going up my van has not all ways reached the top micro switch, so no need to use cancel button at top, but the times it does like last night it had reached the top and the bleeping had stopped, to bring it down, i first used the cancel button, then got the fas bleeping like you said, but still did not come down. I will check the ohms on the motors, allso when up might unplug power to motors and check getting correct volts, when down switch applied.

would be nice to have flow chart of what to do in a correct order, not fully sure yet what disables lid down, will have to dig deeper.

Not trying roof again till I have a full day. )

Hi,one thing that has been often meansioned on the forum is that disconecting the battery has often seamed to cure problems.You could simulate this by removing fuses 10 and 12 the 2 fuses that feed the control box.This may be worth a try.
mrsam

Hey mrsam,

I'm having the same problem with my roof ... it's stuck down and I can't get it up! I've taken off the real side panel to get access to the control unit, have checked the returns from all the microswitches, checked the fuses, checked the switch inputs to the control unit and finally tried to drive the motors directly by bypassing the control unit on the 4-way connector ie shorting the fused 12V 30A directly to the roof-up motor drive.

When I do this I hear no noise at all from the motors and no movement from the roof. A continuity check from the motor drive to the 0V chassis suggests that the motors are open circuit (and indeed driving them via a current meter shows no current being drawn). So either the connectors to both motors have fallen off, or both motors have died simultaneously (both options seem unlikely).

So, where do I go from here? The only option I can see is to remove the interior roof paneling, unbolt the whole AFT assembly and remove it from the top of the vehicle.... unless you can suggest anything else to try first.

If I do end up trying to remove the roof completely, does anyone have any experience of this and any suggestions? I have the service manual, which shows a special hanger assembly being used to lift the roof off - and also advises of its 65kg weight.

Hoping someone could offer some help or maybe even hope!
Mike.

All sorted at last! When I finally spotted my deliberate mistake of not connecting the return path too when driving the motors directly, the motors worked and raised the roof!

Turned out that it was one of the limit switches that was stuck ON, so cleaned them all up; cleaned and re-lubricated the runners etc and now the roof works a lot better than it has for a long time.