Your daughter will need to hire a lawyer to defend against the landlord. Depending upon the terms of the lease, she may very well be liable for incidental damages as a result of setting off the sprinkler system. However, it sounds like the landlord must have just kicked her out without using the legal process. If that is the case, she may have a defense/counterclaim to any claims the landlord has. Without seeing the terms of the lease, I cannot tell you anymore. I strongly encourage you to seek legal assistance. I practice in landlord/tenant law and would be happy to sit down and discuss the issue.
Andy Thompson
Attorney at Law
(651) 698-2181