Prolonging Projector Lamp Life

We know that many of our customers think that replacement projector lamps are expensive, and despite the fact that we offer the best prices available on many models and free delivery on all, we believe it is still important to help our customers make the most of their investment.

In this week’s BLOG we take a look at a few simple ways in which you can prolong your projector lamps life.

Switch off the projector when not in use – Properly.

You should always switch off your projector when it is not being used, but it is important that this is done properly by using the power down button on the remote control or projector. This enables the temperature of the projector lamp, which operates at several 1000 degrees, to be cooled by the fan in a controlled fashion. If you switch the projector off by disconnecting the electricity supply prior to completing this process then the glass in the lamp cools unevenly and can lead to stress and fracture of the glass resulting in premature failure.

Clean the filters.

Projectors attract dust and this causes problems for LCD projectors in particular. To prevent dust getting into the workings of the projector, manufacturers fit them with dust filters. However, over time, these filters become clogged up and this in turn can cause the lamp to overheat and fail. Filters should be cleaned periodically; the frequency depends on a number of factors including the environment in which the projector is operating. Sanyo for example recommend a filter clean after every 100 hours or 1 month of usage. This is usually a simple procedure and can be carried out by the user. Instructions on how to change the filters are given in the user manuals, but can usually be found online if you have misplaced yours. For example:-

Please note failure to clean filters will probably invalidate any warranties on the projector and lamp, so it is vital this routine maintenance is carried out.

Treat your projector with care.

A hot lamp filament is fragile and vibration or movement can cause failure. Leave you projector to cool down for a few minutes prior to moving it.

Use “Economy” mode where possible.

Many modern projectors, and particularly those aimed at high usage markets, have an economy mode or high/low lamp facility. If the image is sufficiently bright to enable your audience to view the image, switching to economy or low mode is like to increase lamp life by 25-50%.

When your lamp does eventually fail and needs replacing you need to take care to

Never touch the glass with bare skin.

Take great care when handling your lamp to ensure that you don’t touch any of the glass components with your fingers, as this can lead to hot-spotting and cause premature lamp failure – always use a cloth or gloves.

Fit the replacement properly.

If you are fitting a bulb into an existing module housing, ensure the terminals are not over tightened as the ceramic can be cracked and reduce the electronic insulation of the lamp. Alternatively, if they are under tightened, it can cause arcing on the terminal, which puts undue load on the ballast that can then lead to a failure.

For plug in bulbs, be sure the lamps are seated completely. The tendency is to stop at the first sign of resistance. Continue to apply force at the base of the lamp until you are sure the lamp is secure.

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