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How do I jump the Honeywell ST1920C relay so the blower will start?

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  • lrgraves Jan 31, 2010

    Great help. I should have know this, it's been 3 years since i had to do my own maintenance. Thank you,

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What you can do is pull the wire that is on the heat terminal of the board and put it on the humidifier terminal in order to enegize the fan ona call for heat Or if the board has a fan on terminal you could also energize the blower from the fan on terminal but if the board is burnt or bad and will not energize the fan then the fan on terminal may not work either so you can try the humidifier terminal. hope this helps have a wonderful day.

Posted on Jan 30, 2010

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