Buickman225
Member
I have no hi position on the fan when the a/c or heat is on. Low and mediem work fine. Any ideas??? I replaced the switch, high low switch already, could it be the fan it self? 
78 Electra 225 Blowwer A/C
- Thread starter Buickman225
- Start date
Its not your fan, those fans are nice to us mechanics, they work or they don't work period!
on the blower box there is an oval electric "thingie" with 4 prongs on it installed IN the blower case, remove it from the case. inside you will see several coiled wires each going to a set of prongs.
look to see if these are unbroken and free of rust. If they look fine look for a small 11/2 by 1 inch box thats the high speed solenoid these are most likely the culprits. Oh and do check the wires they do sometimes burn trough and since the high position is a different wire then low 1 or 2 that could be it aswell.
on the blower box there is an oval electric "thingie" with 4 prongs on it installed IN the blower case, remove it from the case. inside you will see several coiled wires each going to a set of prongs.
look to see if these are unbroken and free of rust. If they look fine look for a small 11/2 by 1 inch box thats the high speed solenoid these are most likely the culprits. Oh and do check the wires they do sometimes burn trough and since the high position is a different wire then low 1 or 2 that could be it aswell.
Buickman225
Member
Thanks I believe I changed that but i did not check the wire I will check it today!
