Heater only works on high on Buick Century

When the heater only works on high, the most common problem is a blower motor resistor. The correct repair is to replace it with a new resistor.

RepairPal Verified
Average mileage: 114,392 (30,000–200,000)
5 model years affected: 1997, 1998, 1999, 2000, more2002
17 people reported this problem
11 people shared problem details
2002 Buick Century116,000
My heater AC motor does not work on the lowest two settings.
My heater only worked on high before, and when I would turn it on it would make a horrible screeching sound. The thermostat turned out to be bad, once this was replaced, it seems to work a lot better.
my heater only works on the high setting, when i turn it on high it makes a loud noise and does not blow heat.
1999 Buick Century200,000
No heat unless I turn it to high
1999 Buick Century73,000
low does not work
heat and air controls only work on low and high
The heater works on high only
My low or high setting won't work
Heat only works on high. Have not got it fixed as it was winter.
2002 Buick Century187,000
blower motor works on high only the resistor has been changed with no help, the temp. control panel has also been changed with no help what is next.
1999 Buick Century84,000
heater only works on high
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