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I have already changed the heat sequencer&limit switches still no power to the sequencer and I'm getting 37voits @ thermostat

Central electric furnace, model# EB17A

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37 volts is way to much. Verify your transformer is set to proper voltage, 208 or 240. Then verify 24-27 volts on r terminal. Wire nut red green and white at stat to bypass tstat, then check low voltage to sequencer. If its anything other than 27 you have a bad wire or possibly a bad board. Not sure how your power gets to sequencer. Make sure you are testing sequencer on each side of coil, power and common, not power to cabinet. May have issue in common wire. Or try both P&C OR P TO cabinet

Posted on Dec 17, 2016

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