The trick is to push the lever to the open position, hold it into the notch, and let the spring pull it back to closed. When the lever is against the side of the notch it will hold itself there until you reset it manually or by applying power to the motor (when it will open and the lever will spring out of the notch). Well that's my limited experience anyway.
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local