Tech Tear Down – Dehumidifier PCBs

My mom is obsessed with dehumidifiers. When one of the three in the house stopped working (it was old and in bad shape when we got it, so it was no surprise that it broke) I of course jumped on the opportunity to tear it up, even though my mom was upset. It was already partially apart when I got it, because my dad had been trying to fix it. I was most interested in the two PCBs inside.dehumidifer_pcb_diagram

One was the control board, attached near the top of the unit, that you could adjust the dehumidifier settings, such as the on/off time, desired humidity level, and fan speed. Another PCB buried deep within served to connect the rest of the mechanical parts of the unit to power. There’s some relays, a large cylindrical electrolytic cap, an even larger ‘boxy’ cap, and a transistor with a heat sink.

dehumidifier pcb large capAnd finally, here’s a pic of my dog, Denver, next to the humidifier torn apart. The dehumidifier is medium sized as far as dehumidifiers go.

dehumdifier with denver

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s