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nordyne furnace problem!!!

Posted: Fri Nov 23, 2007 2:40 pm
by mikemikev8
i bought a manufactured home new 1 yr. ago the furnace worked great the first yr. now it will come on and heat up but the vent safety switch keeps opening befor the furnace cycles off and the inducer and blower run continuiosly. i have checked and cleaned both the exhaust vent and intake vent checked all switches and cant find a reason why it keeps opening. when it opens i have to turn the power off reset the switch and turn it back on. then it just reopens. HELP!!!

Posted: Sat Nov 24, 2007 12:58 am
by hvac1000
Check for a obstruction in the vent/exhaust gas line.