Kit Price

HP LaserJet II/III Chirping Noise (Upper Fan)
(Order # KIT-SXFAN-UP)

$59 US

Difficulty Level (1=easy, 10=difficult): 3
Order #

KIT-SXFAN-UP

Order Kit


Tools Needed

 Symptoms: Your HP LaserJet II, III, or Laserwriter II printer makes a chirping noise coming from the back near the power cord plug. Some people say the noise sounds like "crickets."

The noise occurs when the printer is printing. When it stops printing, the noise occurs for a minute or longer. If you open the printer and push the black rubber bushing with your finger, the noise changes or stops momentarily. (Shown below)

Cause: The upper cooling fan is worn. This usually caused by wear & tear.
Phillips Scewdriver

Workaround: You can ignore the noise. It won't hurt the printer until it stops--which means that the fan has seized.

Kit Description: The kit involves replacing the upper cooling fan. It should last about 100K pages.

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