How can you tell if your UV lamps need to be replaced?

Over time the running voltage of a UV lamp will drop. Once the UV lamp falls beneath the voltage set by the Voltage Relay, it will fail to send a “Lamp ready” signal to the press.

If a UV lamp becomes swollen due to overheating, this will reduce the running voltage of the lamp. Swollen lamps will also not be as effective at curing.

If all other components within the UV system are operating correctly, lamps should be changed when:

#they fail to start
#they fail to reach “ready”
#they fail to cure
#are significantly discoloured
#are swollen
99% of failures are commonly misdiagnosed as lamp failure. In fact, these are often actually failures caused by other components in the system such as capacitors, ballasts, reflectors or ignitors.

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