richwho
Mar 10, 2008, 06:24 PM
I have a Day & night model 588, the ignition circuit board LED indicates a fault #8 (internal control fault). Are there voltage checks to confirm that the circuit board needs replacement.
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richwho Mar 10, 2008, 06:24 PM I have a Day & night model 588, the ignition circuit board LED indicates a fault #8 (internal control fault). Are there voltage checks to confirm that the circuit board needs replacement. hvac1000 Mar 10, 2008, 06:28 PM 8 Flashes Internal Control Fault • You might check all the grounds from the furnace back to the main electric panel. richwho Mar 10, 2008, 06:47 PM Looks like circuit board. 8 Flashes Internal Control Fault • You might check all the grounds from the furnace back to the main electric panel. Thanks! I will check the ground connections. If this does not work I will need a replacement circuit board. Do you know what the replacement circuit board is for the original 48SS500177 board. hvac1000 Mar 10, 2008, 07:35 PM I find no listing for that part number. Example of numbers below http://heatcoolparts.com/webpages/Carrier/PCboardsIgnitionControls.html Copyright ©2005-, Ask Me Help Desk
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