Blower Motor Always On

BLOWER MOTOR ALWAYS ON

TEST DESCRIPTION

Steps 1 - 7:

The numbers below refer to the step numbers on the diagnostic table.
4. Test the Low, Med 1, Med 2 and High blower motor control circuits for an short to ground. The High speed blower motor control circuit is spliced to the Blower motor resistor circuit. This circuit should be checked for a short to ground also.
5. Check the connection by removing and securely reinstalling before replacement of the HVAC control is considered.