heater blower problems

[Dan Weiland]

Hi everyone;

Working on 70 GS 455 . Restoring engine compartment and trying to get blower motor to work. Had no power to motor so I took the dash apart, connection to blower switch was not hooked up, connector to selector switch has just a lead going from one side to other but not hooked to connector switch. removed this lead and reconnected to selector switch. Hooked battery back up and started car. Turned on blower switch , work fine till I got to high and then it killed the motor.:blast: Would appreciate any help!!!
Thanks alot
Dan Weiland
70 GS 455 hardtop hers
71 GS 455 conv his ( & hers)

[LARRY70GS]

Dan,
Two things to check. 1) there is a blower relay on the firewall, up high, in the middle. 2) The blower resistor assembly on the A/C/heater box, it has several resistors that control the various fan speeds. Hope that helps.