Freezer back wall freezing up - Appliance Repair Forum

First all of the food in my Freshfood drawers were freezing up and now the entire back wall of the freezer is a solid peice of ice including that behind the rear plate. Please help....what could this be???

Amana ARB2217CB  Ref - Bottom Mounts
Amana ARB2217CC  Ref - Bottom Mounts
Amana ARB2217CSL  Ref - Bottom Mounts
Amana ARB2217CSR Ref - Bottom Mounts
Amana ARB2217CW  Ref - Bottom Mounts
Amana ARB224RCB  Ref - Bottom Mounts
Amana ARB224RCC  Ref - Bottom Mounts
Amana ARB224RCW  Ref - Bottom Mounts
Amana ARB2257CB  Ref - Bottom Mounts
Amana ARB2257CC  Ref - Bottom Mounts
Amana ARB2257CSL  Ref - Bottom Mounts
Amana ARB2257CSR  Ref - Bottom Mounts
Amana ARB2257CW  Ref - Bottom Mounts
Amana ARB2259CB  Ref - Bottom Mounts
Amana ARB2259CC  Ref - Bottom Mounts
Amana ARB2259CS  Ref - Bottom Mounts
Amana ARB2259CW  Ref - Bottom Mounts
Amana ARB2517CB  Ref - Bottom Mounts
Amana ARB2517CC  Ref - Bottom Mounts
Amana ARB2517CSL  Ref - Bottom Mounts
Amana ARB2517CSR  Ref - Bottom Mounts
Amana ARB2517CW  Ref - Bottom Mounts
Amana ARB2557CB  Ref - Bottom Mounts
Amana ARB2557CC  Ref - Bottom Mounts
Amana ARB2557CSL  Ref - Bottom Mounts
Amana ARB2557CSR  Ref - Bottom Mounts
Amana ARB2557CW  Ref - Bottom Mounts
Amana ARB8057CB  Ref - Bottom Mounts
Amana ARB8057CC  Ref - Bottom Mounts
Amana ARB8057CSL  Ref - Bottom Mounts
Amana ARB8057CSR  Ref - Bottom Mounts
Amana ARB8057CW  Ref - Bottom Mounts
Amana ARB9058CB  Ref - Bottom Mounts
Amana ARB9058CS  Ref - Bottom Mounts
Amana ARB9058CW  Ref - Bottom Mounts
Amana ARB9059CS  Ref - Bottom Mounts
Amana ARC-1 Range - S/c S/i Ddraft Gas
Amana ARC-100 Range - S/c S/i Ddraft Gas
Amana ARC-100B Range - S/c S/i Ddraft Gas
Amana ARC-100B Range - S/c S/i Ddraft Gas
Amana ARC-100B Range - S/c S/i Ddraft Gas
Amana ARC-1B Range - S/c S/i Ddraft Gas
Amana ARC-1B Range - S/c S/i Ddraft Gas
Amana ARC-1B Range - S/c S/i Ddraft Gas
Amana ARC-2 Range - S/c S/i Ddraft Gas
Amana ARC-2B Range - S/c S/i Ddraft Gas
Amana ARC-2B Range - S/c S/i Ddraft Gas
Amana ARC-2B Range - S/c S/i Ddraft Gas
Amana ARC-2B Range - S/c S/i Ddraft Gas
Amana ARC-506 Range - S/c S/i Ddraft Ele
Amana ARC100B Range - S/c S/i Ddraft Ele
Amana ARC100D Range - S/c S/i Ddraft Ele
Amana ARC1B Range - S/c S/i Ddraft Ele
Amana ARC502W Range - S/c S/i Ddraft Ele
Amana ARC505 Range - S/c F/s Ele
Amana ARC505B Range - S/c S/i Ddraft Ele
Amana ARC515 Range - S/c S/i Ddraft Ele
Amana ARC515 Range - S/c S/i Ddraft Ele
Amana ARC515 Range - S/c S/i Ddraft Ele
Amana ARC700E Range - S/c S/i Ddraft Ele
Amana ARC700E Range - S/c S/i Ddraft Ele
Amana ARC700E Range - S/c S/i Ddraft Ele
Amana ARC700LL Range - S/c S/i Ddraft Ele
Amana ARC700LL Range - S/c S/i Ddraft Ele
Amana ARC700LL Range - S/c S/i Ddraft Ele
Amana ARC700WW Range - S/c S/i Ddraft Ele
Amana ARC700WW Range - S/c S/i Ddraft Ele
Amana ARC700WW Range - S/c S/i Ddraft Ele
Amana ARDS800E Range - S/c S/i Ddraft Ele
Amana ARDS800WW Range - S/c S/i Ddraft Ele
Amana ARDS801E Range - S/c S/i Ddraft Ele
Amana ARDS801E Range - S/c S/i Ddraft Ele
Amana ARDS801E Range - S/c S/i Ddraft Ele
Amana ARDS801E Range - S/c S/i Ddraft Ele
Amana ARDS801WW Range - S/c S/i Ddraft Ele
Amana ARDS801WW Range - S/c S/i Ddraft Ele
Amana ARDS801WW Range - S/c S/i Ddraft Ele
Amana ARDS801WW Range - S/c S/i Ddraft Ele
Amana ARDS802E Range - S/c S/i Ddraft Ele
Amana ARDS802E Range - S/c S/i Ddraft Ele
Amana ARDS802E Range - S/c S/i Ddraft Ele
Amana ARDS802E Range - S/c S/i Ddraft Ele
Amana ARDS802SS Range - S/c S/i Ddraft Ele
Amana ARDS802SS Range - S/c S/i Ddraft Ele
Amana ARDS802WW Range - S/c S/i Ddraft Ele
Amana ARDS802WW Range - S/c S/i Ddraft Ele
Amana ARDS802WW Range - S/c S/i Ddraft Ele
Amana ARDS802WW Range - S/c S/i Ddraft Ele
Amana ARE14 Misc / Accessory
Amana ARE640 Range - S/c S/i Ddraft Gas
Amana ARE640 Range - S/c S/i Ddraft Gas
Amana ARE640 Range - S/c S/i Ddraft Gas
Amana ARE650 Range - S/c S/i Ddraft Gas
Amana ARE650 Range - S/c S/i Ddraft Gas
Amana ARG3600L Range - S/i Std Gas
Amana ARG3600L Range - S/i Std Gas
Amana ARG3600L Range - S/i Std Gas
Amana ARG3600L Range - S/i Std Gas
Amana ARG3600L Range - S/i Std Gas
Amana ARG3600LL Range - S/c S/i Ddraft Gas
Amana ARG3600LL Range - S/c S/i Ddraft Gas
Amana ARG3600LL Range - S/c S/i Ddraft Gas
Amana ARG3600W Range - S/c S/i Ddraft Gas
Amana ARG3600W Range - S/c S/i Ddraft Gas
Amana ARG3600W Range - S/c S/i Ddraft Gas
Amana ARG3600W Range - S/c S/i Ddraft Gas
Amana ARG3600W Range - S/c S/i Ddraft Gas
Amana ARG3600WW Range - S/c S/i Ddraft Gas
Amana ARG3600WW Range - S/c S/i Ddraft Gas
Amana ARG3600WW Range - S/c S/i Ddraft Gas
Amana ARG3601L Range - S/c S/i Ddraft Gas
Amana ARG3601LL Range - S/c S/i Ddraft Gas
Amana ARG3601W Range - S/c S/i Ddraft Gas
Amana ARG3601WW Range - S/c S/i Ddraft Gas
Whirlpool ARG483WP01 
Whirlpool ARG490 
Whirlpool ARG4901 
Amana ARG7102C Range - S/c S/i Ddraft Gas
Amana ARG7102L Range - S/c S/i Ddraft Gas
Amana ARG7102L Range - S/c S/i Ddraft Gas