Had another moment of crisis when test driving the car again after work today. Whilst driving the car on the private road area at the industrial estate where the car is now based I became aware that the roof mechanism was pulsing on and off without me touching the roof switch. At first I thought I must have the remote keyfob in my pocket that was triggering the mechanism but quickly realised this was not the case. I stopped the car and the pulsing settled into a constant roof down action with the pump eventually straining as the roof was became fully closed. The pump kept on running against a blank end and I had no way of switching it off from inside the car. Pressing the roof switch inside the car made no difference so I made yet another well rehearsed emergency exit out through the sunroof and was able to disconnect the battery cutting the power to the pump.
Close investigation revealed that my temporary wiring was causing this issue. The push button switch (located in the front compartment that I use to open and close the roof from outside the car) was shorting itself out against the pumps metal pipework. The switch normally lies loose and had moved when the car was being driven causing it to make contact with the metal pipework.
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Obviously this would never have happened if I had properly sorted wiring, but once again it brings home to me the importance of a back up means of escape should there be a problem with the roof. I'm not aiming this message at anyone in particular (cough Mark cough) just thought I should mention it.
The joys of Nova ownership