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View Full Version : Why does my heater work but my a/c and fan does not with my central hvac?


askblackward
Feb 17, 2012, 08:14 PM
All fuses power good, the control board checks L1 and L2 have power(115 volts)door switch is working. Fan will not run in manual position and a/c will not turn on. Older currier unit new control panel and working thermostat fan runs while heater is being used with no problem