Question about Universal ICP Heil Tempstar 10 12 KW Heat Sequencer Relay 1150022 751292 Furnace Sequenser
Hk42fz0433812 board schematic diagram is needed to troubleshoot board
There should be 24-28v at the W terminal coming from the board to the sequencer. No voltage, replace the board. Make sure the thermostat is calling for heat and there's 24-28v on the t-stat's W terminal first or you'll never find it on the board.
Posted on Dec 08, 2013
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Posted on Jan 02, 2017
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