Make slight buzzing noise, nothing shows on display when plugged in
FIXED
I have a deal with this kind corporates sabotaging for 2-3 times a month fixing computers and monitors.
The circuit boards for many BRAND NEW household devices, PCs, Computer monitors, dehumidifiers etc. purposely designed to work a little bit after warranty period and die quietly
Heater EW7507EK fixing. (soldering required)
Step 1. Unscrew 2 screws on the bottom of the face side.
Step 2. Mark and Unplug 3 wires from heating element. Unscrew the metal cover from circuit board. Immediately you'll see small black cylinder (CAPACITOR 470mF x 35V). Retail cost about $1- $3
Check this - the top of this capacitor rounded, not flat. That is mean it was "quietly blowup" and electrolyte evaporate.
Step 3. solder new capacitor.
Enjoy
Ely
Boston
Worked for Me I followed the instructions my capacitor was not rounded at the top but had a dark brown mess at the bottom by the terminals. Replaced the capacitor and buzz is gone and it works fine now. A extra plus, the screen you read had a film on it cleaned it while apart can now read screen without using a flash lite. THANK YOU
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Yep, 470uf capacitor bad, replaced, works fine. Symptoms: originally, odd, mostly non-working display, dusted and vaccuumed inside, display better but wouldn't turn heater on (and display wouldn't show heater as on), intermittently left (power) LED flashing ominously. Tested 470uf cap in circuit, lower than 1 uF, desoldered it, tested out of circuit, still that reading. Slight but not amazing bulge on top of cap, but it was defn bad. Desoldered using chip-quik and replaced with Nichicon 470uf 35v 105C cap I had lying around, fixed. Replacement is slightly taller but no big deal. To get unit apart start with two screws on bottom front of case.
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