Re: ELBA tower fan keeps blowing resistor

Hi,
My tower fan is a Honeywell HO 5500RE but has the excat same circuit board. Symptoms for the fault was no power, no lights but no obvious defects to any components. There was power to the board, but nothing at the 5V supply which supplies the logic board at the top of the fan. Checked C5 and D3 ok. U1 outputs were not shorted so assumed ok. Eventually found R3 a 2Mohm resistor had failed open circuit. Replaced with two 1Mohm in series and 5V was restored and the fan works! Interesting circuit as the 5V output seems to have live...