Image heating apparatus includes an image heating rotation member, for
heating an image on a recording material, a driving device rotationally
driving the image heating rotation member, an external heating member
including an exothermic member heating the image heating rotation member
in a way that contacts the image heating rotation member, a
contacting-and-separating device for making the external heating member
contact and separate from the image heating rotation member, a conduction
control device for controlling conduction to the exothermic member so
that a temperature of the external heating member becomes a target
temperature, a contacting-and-separating state detecting device for
detecting a contacting-and-separating state of the external heating
member, and an abnormality detecting device for detecting an abnormality
of the contacting-and-separating state of the external heating member
rendered contacting and separating by the contacting-and-separating
device, based on the detection by the contacting-and-separating state
detecting device.