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for troubleshooting ECM motors in 2004 we developed the home comfort guide this guide covered how to troubleshoot variable speed motors only because the x13 had not come out yet so in 2006 when we introduced the x13 we updated that guide and changed his name to the ECM service guide in 2009 we updated that guide again to include both the outdoor fan motor and the new aftermarket evergreen so you can get this guide today at our website the dealer toolbox comm by downloading the PDF and printing it yourself or by ordering the guide that you see here it will help you troubleshoot all of our ECM motors including the x13 before we get into troubleshooting the X 13 motor we have to remember that the X 13 is a motor inside of an HVAC system so in troubleshooting any system where the motor may not be running or we're having air flow issues we have to remember that there's a lot more going on than just the motor the thermostat has to be giving the proper demand to the system there could be lim...