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- posted
10 years ago
what does flash code 12 mean on a 20 year old bryant furnace
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- posted
10 years ago
I will need a model number and serial number on the unit in oder to assist you. Code 12 is an airflow problem. It could be a clogged air filter, clogged A/C evaporator coil, blower motor problem or other problems. If the filter is clean, you are probably going to need a HVAC tech to check the unit for the cause of failure.