Here is an example of a maintenance or repair request form. Though some landlords may prefer to communicate this way, you should also try calling the landlord directly, especially in emergency situations.
From: Tenant Name, Rental unit address
Re: Maintenance/Repair request
The following problem/s exist in my rental unit: (be as specific as possible)
The best time/s to make the repairs is: (try to be present during the repair)
Please contact me to confirm the time and manner repairs will be done. I/we would appreciate your prompt attention to this matter.