UPVC Doors
Below are pictures of the most commonly used systems on the market, and in conjunction with a separate cylinder, will complete the system. To help with lock identification, make a note of any markings on the door end-plate (where the latches stick out the door).
Typical faults include:
- When the door is closed, difficulty in lifting door handles.
Normal operation when door is open.
- Door difficult to operate over a period of time, then suddenly becomes easy to operate.
- Normal operation of system, but the locking of the cylinder is difficult either outside, inside or both.
- Door will lock, but cannot remove key from the lock.
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