CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS


We  consent to the  reference  to our firm under the  caption  "Experts"  in the
Registration  Statement (Form S-3) and related Prospectus of THERMOGENESIS CORP.
for  the  registration  of  4,720,562  shares  of its  common  stock  and to the
incorporation  by reference  therein of our report  dated August 13, 1999,  with
respect to the financial statements and schedule of THERMOGENESIS CORP. included
in its Annual  Report (Form 10-K) for the year ended June 30,  1999,  filed with
the Securities and Exchange Commission.


                                                    /s/  ERNST & YOUNG LLP


                                                         Sacramento, California
                                                         January 17, 2000