Vulcan cx90 furnace unit . fan wont turn off

Nangy requested 3 quotes from Heating Professionals in Dallas

as above. the heater works fine ... the fan wont turn off unless you turn it off from the mains

DHC AIR

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To have a checkup thoroughly for my mum's house (she is a pensioner of 70)
my mum house is old (almost 50 years old) and run down; she wants to have the...