Under the Residential Tenancies Act if either party fails to act on a request for either repairs or non payment of any outstanding issues then a breach notice must be issued before it can be enforced in the Tenancy Tribunal.
This can be issued to the landlord from the tenant for any maintenance issues that have not been addressed.
However, when a tenant locks himself out of the property, breaks the toilet window, falls in and breaks the toilet and issues us with a breach notice to repair does not apply!