8. Push the tabs on the 4-wire and 2-wire connectors to release them from their sockets on the PCB.
Move them out of the way.
9. Flip the unit over so that the front control panel is accessible. You may want to prepare a heat gun
(without any nozzles or other attachments) for use on this step. We recommend the WEN 2020 1500W
Dual-Temperature Heat Gun Kit, available for purchase online. On the lowest heat setting, evenly
warm the adhesive sticker on the front panel, outlined in yellow in Figure 6 below. CAUTION: HEAT
GUNS ARE HOT. Observe all safety precautions listed in your heat gun’s owner’s manual. Do
not allow the heat gun’s nozzle or body to come into contact with your skin or any portion of your
3410 air filtration system.
This exposes the underside of the panel. Using the Phillips-head screwdriver, remove the two screws
indicated by red arrows in Figure 7 below.
Figure 6: Remove the adhesive sticker outlined in yellow.
Figure 7: Remove these screws.
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