Garage door motor

[greengrass]

'Rollaway' electric operated roll shutter garage door

Are garage door motors low voltage ?
Are garage door motors standard voltage or variable?

Reason: My control box has blown a gasket and it will cost around £300 to replace the electronic control unit and remotes.
The original installers wont tell me over the telephone and say I have to call out an engineer even though they have all the details of the unit.
Guess what!!! they want £135 just to tell me what the output voltage to the motor is. They also wanted £45 for a hand winding handle.... I made one from a piece of hex rod £3

Why do I need to know? To operate it through a transformer via a two way [ Deadmans ] switch. I have both. It's used as a workshop with additional side entrance.
Stopping now as I am beginning to waffle and me fingers are getting sore typing.

Greengrass

 

[JohnD]

I don't actually know, but roller shutters are pretty heavy beasts, so I doubt it would be extra-low voltage. The ones I've seen have a pretty big induction motor, you'd need an awful lot of amps.

 

[crystal ball]

I have seen 2 lately, both 24v motors, have a squint at the motor there should be a rating plate on it giving the info you need

 

[greengrass]

Hi crystal ball and JohnD thanks for info will try checking the motor plate providing the covering side plate comes off separate from the motor housing or 'crash' it'll fall down. I might be able to support it with a builders accrow I've got. Yes it's a big roller and the motor sits in the end of the roller of course. It winds up manually ok [down quicker] but my arms are getting tired so am training 'er in doors to do it. Can't do much at the moment in middle of re-furbishing the bathroom.

Many thanks and Merry Xmas

 

[breezer]

if its a roller shutter it will be a 240v motor

 

[crystal ball]

if its a roller shutter it will be a 240v motor

I ran a supply to a roller door last year and it was a 24v motor controlled from a unit supplied with the door

 

[greengrass]

Thanks breezer and again all others.
I've tempted a friend to help by dangling a six pack in front of him to give me a hand. I'll be taking the plastic cover off which seems to be just a trim cover over the motors end I hope. Still I'll be alright he's the one who will be holding the shutter roll. Nasty b.....d ain't I heh! heh!.

Once again
Happy Christmas to all.

Greengrass