If you hear your Acer HE-4K15 Projector makes a popping sound, be carefull, it is most likely that your projector lamp burns out.
What to do when Lamp burns out or makes a popping sound:
When the lamp reaches the end of its useful life, it will burn out and may make a loud popping sound. If this happens, the projector will not turn on until the lamp module has been replaced.
To replace the lamp, it is very important to clean the debris out firstly. and have a check that weather other compartments have been damaged or not. Therefore, it is better to get a professional assistance by contacting your local dealer or Acer service center.
In fact, this is an extrem situation, we should avoid this as much as possible. Pay attention to the lamp life of Acer HE-4K15 Projector will ensure you stable image output with high quality. And make the projector’s lifespan as long as much possible. Read How to Know Acer HE-4K15 Projector’s Left Lamp Hours? to know the lamp use of your Acer HE-4K15 Projector.
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How to Know Acer HE-4K15 Projector’s Left Lamp Hours?