Simple resistor questions

Hi! I'm a complete novice trying to replace a damaged resistor on the circuit board of my coffee grinder. I soldered in a replacement. The person who sold it to me said it was not an exact replacement, but within tolerance. When I applied power, the resistor glowed red hot and started smoking. The questions: Should I have used a resistor with a higher resistance, or a lower one (it was 110 ohms)? What's the likelihood that that momentary application of power damaged other components on the board?

by MichaelPaitich
September 03, 2017

That's why the old one blew. Something else has failed.

by mikerogerswsm
September 04, 2017

Do you know what the power rating of the resistor was from the old to the new? How many Watts? Not only do you need the resistance value to match, you also need to replace it with an equal or higher power rating.

by cklopotic
September 05, 2017

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