Tenant agrees to allow Landlord timely access to premises to do maintenance and repair.Tenant will notify Landlord in a timely manner of any damages or problems as they arise, including damages caused by Tenant, malfunction of appliances or fixtures, and water/moisture leaks and spots.Tenant will take care of the premises, keeping them clean and clear of debris.

You need to go on automatic delivery.Phone service:Keep in mind that missing phone jacks or bad or malfunctioning phone wiring are the responsibility of the tenant.

I have managed numerous properties with key less entrance or codes and lot of time it malfunctions or outside guest just use the code to get in.

Mario Mormile , my experience is that the fancier the thermostat, the more service calls you will have...due to operator error, not a malfunctioning thermostat.

An uncommon but possible scenario is a  humidifier installed in the hvac system that is malfunctioning or was turned the whole way up.

Nearby refinery Suncor is still active and is in the news often for having malfunctions and releasing unsafe levels of the same gas once used to kill death row inmates (hydrogen cyanide) into the air, causing residents to “shelter in place”, as well as dumping waste into the South Platte.

Unlikely to be a vent issue unless there's an air admittance valve rather than a proper vent and it's malfunctioning. 

We sold a property just as we found that both the washer & dryer were starting to malfunction & the dishwasher had to have been a '70's beta edition.Those 'helping them' to move removed the washer/dryer & old dishwasher, but left the newer fridge?? 

Tenant agrees to allow Landlord timely access to premises to do maintenance and repair.Tenant will notify Landlord in a timely manner of any damages or problems as they arise, including damages caused by Tenant, malfunction of appliances or fixtures, and water/moisture leaks and spots.Tenant will take care of the premises, keeping them clean and clear of debris.

Landlord is not liable for any interruption or malfunction of service.