Damage to Air Conditioner by gardeners employed by strata

We recently had out air conditioner damaged by a gardener employed by the strata committee (of which I'm a member). The A/C unit sits on common property and there are no bi-laws, etc that I can find where responisibilty of the upkeep of such things is stipulated.

With regards to paying for the repair, who is responsible? My thoughts are that the gardeners are responsible, but that it's the Strata's responsibility, as the employers of the gardeners, to chase them up. If the Strata is unwilling or unable to chase them up then it should come out of the building insurance.

Our strata manager has told me that this is not correct, and that I need to chase up the gardeners directly for reimbursement.

Who's right in this situation?

Thanks,

The Dawdells