Digital Climate Control Blower Problem

[BIGBEN1980]

IF ANYONE CAN HELP WITH THIS PROBLEM I WOULD GREATLY APPRECIATE IT. I JUST BOUGHT A 1994 GRAND CHEROKEE LIMITED 4x4. THE A/C BLOWER WILL ONLY COME ON AT THE HIGH SETTING. AT THE LOW SETTING IT SAYS "ER" ON THE LITTLE DISPLAY. I AM NEW TO THE JEEP BUT I AM REALLY PLEASED WITH IT OTHER THAN THIS PROBLEM. THANK YOU

[dcx96]

Any codes? there is no resistance in the motor relay i'd think. replace relay or switch and I'd bet thats it.