So I have a limited knowledge of electronics but I would guess the issue is the transformer, I am guessing that the 220V do run on 110 because 4.5V (half of 9V) would probably be just enough to get the control circuit going but not enough to get the relays going, you could just change the relays but you control circuit would still be just surviving
(and would probably cost more than replacing the transformer!)
http://www.futureelectronics.com/en/Technologies/Product.aspx?ProductID=BV301S09015ZETTLERMAGNETICS9579905 and at under $3 it seems worth it
this looks like the piece to buy and replace (pending confirmation upon opening of a 220v unit)
Eidt: stupid work getting in the way of reply on HBT
, was that the first result on google for you too o4 SRT?