NovoRol roller shutter

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I had a NovoRoll [deluxe] electrically operated roller shutter installed on my garage in January 2018, three months later in April 2018 the door failed to close properly and appeared to be jammed, however I managed to 'nurse' it down with the remote and the manual winding mechanism.. The installers, The Garage Door Co in Sheffield replaced what I can only describe as the unit designed to stop the door crashing down in the event on motor failure, which it hadn't!

This has now happened again with the same unit failing again, after about a week the company turned up to fix this but hadn't got the relevant part, this has to be ordered, a week further on still no progress!

After the first incident I contacted the companies head office spoke to a lady but could not speak to anyone with technical knowledge so I wrote in detailing my concerns, I never received a response. On the latest incident I contacted the manager at the local branch and wrote to him with my concerns enclosing a copy of what was sent to head office.

Sorry about the length of this post but I need to set the scene, it transpires that these arresting mechanisms may now have been modified so obliviously I've insisted that the newer version be fitted.

Has anyone had similar experiences with this shutter, it also appears to be known as Thermaglide 77 and manufactured by Cardale.

If this device is supposed to be an arresting mechanism then why can the roller shutter be manoeuvred up and down manually [not easily] surely if working correctly the shutter should be locked solid! I'm also concerned that there is no reset mechanism on the device itself.

Once again I'm sorry for the length of this post but I'm struggling to get a grip on this, I'm fast coming to the conclusion that the shutter is not fit for purpose. Any help, assistance, guidance would be much appreciated. Thank you for reading this.
 
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Can you post a pic of the inside showing both the wall unit and the safety edge system?
There are alot of makes of roller doors but many of them seem to use the exact same parts/control systems
 
Thank for responding, without trying to raise door I can't show limit devices, the third image IMG 0184 is the arrest mechanism which has failed. Hope the pictures are helpful Best wishes
 

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Mechanically, that is identical to my own door, apart from the item in 0184. My door just has a simple bearing at that end.

The hand winder is always available to be used, irrespective of any power. There is no brake or any way to lock the door from movement, other than the gearing system included within the motor. Effectively, when the door is partially open, it is possible to manually lift up the door and push it over the top of the door roll.

When the door is fully closed, then some large nylon chain like hinges go over centre, effectively preventing the door then being manually lifted.

Earlier in the year (I installed it a few years ago), the motor drive shaft snapped and the door came crashing down. The motor shaft had a deliberate weak point machined into it, designed to snap under motor over load. Other than that, it has been extremely reliable for many years.

At the manual winding handle end of the motor roll, are located the door movement limit settings. One sets the point at which the door stops going up, the other sets the point where it stops on its way down. Setting those require an allen key and its possible to set those very precisely. I have never known those change once set.

Inside the control panel my version has an adjustment for how long the door motor is allowed to run for, once triggered to go up or down (this might be your problem). It needs to be set to allow just a little longer than the time it takes for the door to fully open from a fully closed position.

I bought my door as a kit, from a manufacture / importer, rather than an installer - so my kit didn't even have a name. I installed it and probably paid around 1/3 the cost of what you paid for your door.
 
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Surprisingly different to the makes I have fitted/worked on so I'm afraid I will be of no help on this one
 
I the 0184 photo that of the 'arrester mechanism' you mentioned?

It looks rather like an electric brake mechanism. I take the white coloured wire above it, releases the brake? If it is a brake and there was a power cut or control failure, how would you be able to manually crank the door with the brake applied?
 
Harry, meant to mention that the white cable you refer to is nothing really to do with breaking mechanism, linked to a push button in the house to raise/lower door without using remote.

Is it possible you know the technical name for the faulty arresting mechanism and are you aware of anyone in the technical department of the Garage Door Company who I can speak to on this matter, I'm about to phone them again and tell them that this door is not fit for purpose [its been in this state for 14 days] and I want my money back! Thank you for responding and also to Gazman16 for responding. Best wishes Jack
 
Is it possible you know the technical name for the faulty arresting mechanism and are you aware of anyone in the technical department of the Garage Door Company who I can speak to on this matter, I'm about to phone them again and tell them that this door is not fit for purpose [its been in this state for 14 days] and I want my money back! Thank you for responding and also to Gazman16 for responding. Best wishes Jack

I can't help further, because I don't know what the 'arrester mechanism' you mention actually is. I don't know anyone in that company or any other door company either - I simply bought my door and installed it myself.

As I said earlier, the only part I don't recognise is the item supporting the left hand side of the roll.

One safety item I added to my door after I installed it, was an IR beam across the door, to prevent the door being closed with my car not quite fully in, or one of my dogs or kids in the way.
 
Harry, Gazman16, Garage Door Company finally turned up to repair shutter. The faulty unit is actually a kind of clutch rather than a brake. What happens is if door is coming down at speed this thing activates on centrifugal principle, there is a ring of ball bearings which fling out and stop shutter, this device can be reset by simply manually slightly raising shutter and things should be OK so long as there is no obvious reason for it triggering such as motor failure!. [The two which failed previously were faulty, obviously a design fault, the new one has been modified] The attached doc is instructions that came with device. Hope this is of interest to you and once again many thanks for all your help. Jack
 

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Hope this is of interest to you and once again many thanks for all your help. Jack

Thanks Jack, yes very interesting. Was I correct in that the item on the left of the shutter roll, is the centrifugal brake you have had replaced? It looks vaguely like the photo on your instruction sheet.
 
I have the same roller door, a "Cardale Thermoglide 77", supplied by The Garage Door Company, Leicester. I have just this last week experienced the same problem of jamming. I had originally diagnosed it as a stalled motor, but like you I have now come to the conclusion that it is down to the speed governor at the other end. Mine appears to have been contaminated by shavings of black plastic stripped from one of the slat end covers, due to the left-most support white nylon roller "walking" inward and therefore flattening the door's angle of presentation to the side rail. This has now been corrected. HAD I needed a new motor, I was having difficulty in determining which model of Ellard Tube Motor is fitted. My door is 3660mm wide and 2750mm high. Does anyone have any information as to which model is fitted and its torque output, for future reference? Incidentally "The Garage Door Company" demand a minimum turn-out fee of £150, yet their base is only 1 mile from my home.
 
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Stephen
I've had a look through all the documentation I have, there's no information on the motor so I'm afraid I can't be of any help to you. Maybe the others who responded to my query, who were really helpful, may be able to assist. Best wishes Jack
 
Not that much help, but I sourced my replacement motor for my 2m wide door from Rollerdor Ltd, for £60. They were very knowledgeable and very helpful it translating the model number on my motor, into their model numbers and were able to recommend an identical one. Delivery took around two days. Rollerdor sell lots of parts for such doors.

The door gradually creeping across in use, suggests the alignment was incorrect from new.
 

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