Keg issues

Guys,
I recently moved a couple of fresh kegs (IPA & Red) upstairs to the keggerator from the freezer in the basement. The basement Co2 pressure is set to like 15# and 35-37F. The keggerator is set to about the same temp but with 5-6# of Co2.
I have been getting 95% foam from these kegs where in the past I got like a 5% or less. I was thinking I might have too much Co2 in the solution so I took the gas off and released the pressure several times over a 2 day period. This morning I hooked the Co2 back up but am still getting a ton of foam even 5-6 hours later.
Any idea what might be causing so much foam?
Cheers,
Tim

Are your lines the correct length / diameter for your serving pressure?

Actually, I've gone through several kegs in this keggerator that's why I am confused I am suddenly having problems.

This is the keggerator kit I bought and put into a Sanyo

http://www.kegkits.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=BT2&Category_Code=HBKKT

Cheers,
Tim

Are you sure the temp is correct? Also, are you sure that the pressure upstairs is accurate?

I don't know what happened in the past, but charging your kegs to 15 psi and trying to serve them at 5 psi is going to cause problems with gas coming out of solution in the lines and causing foam.