'90 heater ac control

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Yadipaul

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Nov 17, 2015
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Over the last few months my heater will throw a fit when I start my truck, and lately as it has been getting colder it flickers and flashes more rapidly than usual. I have checked the connection and cleaned the connectors but no luck. I would buy a new unit but have no idea if that is the actual cause of the problem due to threads I have read before saying a new unit made no difference. Any idea what could be causing the problem? Thanks

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jkeaton

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The heater flickers and flashes? Do you mean some light somewhere or the blower motor or what? Cleaned the connections on what?
 
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