Thank you for your response.
When a tenant rents a premises, they are liable to the landlord for all damages they cause. If the washer was your property and not the landlord's property and the washer failed, then you would be legally liable for the damage it caused. Further, if your lease called for you to be liable to maintain insurance, you would be in breach of that lease for not maintaining such coverage.
Your only chance here is to negotiate the damages with the insurance company if you cannot prove that something other than your property caused the damage to the property of the landlord.
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