Automatic and accessible doors are used every day in plazas, offices, clinics, condos and other buildings. When one stops working, it affects customers, residents and people who rely on accessible entrances.
This guide covers the most common reasons an automatic door will not open or close correctly.
1. Power or Switch Settings
Before anything else, check that the operator has power and that any on/off or mode switch is set correctly. A door left in “off” or “hold open” mode can look like a failure.
2. Sensor or Activation Problems
Motion sensors and push buttons tell the operator when to open the door. Dirty sensor lenses, misaligned sensors, or damaged wireless push buttons can stop the door from responding.
Common warning signs include:
- The door opens only sometimes.
- The push button lights up but nothing happens.
- The door opens on its own without anyone nearby.
- The door reopens or stops while closing.
3. Operator or Motor Problems
The operator contains the motor, gearbox, arm and control board. Worn parts, a failing motor, or a damaged arm can cause slow movement, grinding noises, or a door that stops partway.
4. Door Hardware and Alignment
An automatic operator works with the door’s hinges or pivots, closer and lock. A sagging door, worn pivots, or a lock that is still engaged can prevent the operator from moving the door safely.
5. Safety First
Do not force an automatic door or try to open the operator housing. These systems use springs and electrical components, and incorrect adjustments can create a safety risk for people using the entrance.
6. When to Call a Technician
- The door does not open or close at all.
- The door moves slowly, jerks, or makes grinding noises.
- The door closes too fast or too hard.
- The accessible push button no longer works.
- The door stops or reverses unexpectedly.
Automatic Door Repair in Toronto & the GTA
AEO Services Inc. repairs and installs automatic door operators, sensors and accessible push-button openers for commercial and residential properties across Toronto, the GTA, York Region, Durham Region and Simcoe County.
Explore our Automatic Door & Access Control services or submit a service request online.
Frequently Asked Questions
Why does my automatic door open by itself?
A sensor that is misaligned, dirty, or set too sensitive can detect movement nearby and trigger the door.
Can an old automatic door operator be repaired?
Many operators can be repaired or adjusted. If parts are no longer available, replacing the operator may be recommended.
Can you add an accessible push button to an existing door?
In many cases, yes. It depends on the door, the frame and whether an operator is installed or can be added.