The blower relay is most common problem for that.
Blower Relay # 621867 @ $13.53 + $6.75 shipping .
It can be seen and ordered through PayPal from left side here :
Or, by calling toll free after 9 AM CST to 1-877-263-7860 and
charging to Visa or Mastercard.
Let me if ordering from outside the U. S. .
Thanks for inquiring,
Some people are Humbly Grateful, while some are Grumbly Hateful.................... Which one are you ?