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Air Conditioning Systems in Florida - Boca Raton Property Management

Jul 29, 2021

Some basic information about maintaining air conditioning units

A typical residential central air conditioning system draws in outside air and forces it through or over super cooled evaporator coils containing refrigerant that changes from a liquid to a gas as it works. The process both cools the air and extracts humidity from it, and then the cool air is blown through vents to the rooms of a house or apartment.

The central air conditioning unit outside contains a motor, compressor, fans, condenser coil, wires, coolant and other parts. A motor powers the unit’s movement and runs the compressor. The compressor pushes refrigerant between the inside evaporator coil and the outdoor condenser coil. As the coolant travels back to and through the condenser coil, it changes back to a liquid state and gets pumped, filtered and cooled before re-entering the indoor coil to repeat the process.

The air in a central AC system moves through a series of ducts that run through the ceiling and/or walls. The duct work is usually made of tin or lightweight stainless steel, and the AC system in general also includes the air vents and a thermostat control on the wall

In Florida, we use the AC all year round, and annual  service calls may not be enough to keep your system running like new. For this reason, most professionals recommend inspections and maintenance at least once a year and in some cases every six months. This is important for the health of your system.

The typical life of an air conditioning unit in Florida is between 10 and 15 years but well maintained systems can last up to 20 years in some cases. 

In rental properties Landlords should schedule system checks at least once a year with a licensed air conditioning contractor to check and service the unit and make any repairs as necessary. 

Another important factor is to change the air conditioning filter once a month for the proper operation of the system and the health of the property occupant. This responsibility usually falls under the Tenant as per most lease agreements and it is beneficial to Tenants to keep good air quality indoors and a healthy environment for all occupants. This is also important to keep the unit clean and working properly. Using a good quality air filter is a must in order to preserve good air quality and proper operation of the system, a low quality air filter will not accomplish this.

Another important issue is the clogging of the air conditioning unit. As part of the annual or bi-annual maintenance program for the unit, the technician will clean the draining pipe  but the occupant must perform a simple cleaning process on a monthly basis. When the drain pipe clogs, the unit can freeze and stop working. In some cases this will result in water coming from the unit and flooding the surrounding area creating additional damage to the property. Most units have a flood switch that automatically turns the unit off to prevent this. 

Clogged AC drains can be prevented  by performing routine cleaning. By pouring a ¼ cup of vinegar or chlorine into the AC's drain line, you will kill any mold, algae, mildew, and other forms of bacteria or fungi, preventing it from forming a buildup and causing a clog. Repeat this monthly for the best results. It is advisable to perform this cleaning monthly at the same time of replacing the air filter. 

In rental properties both Landlord and Tenants have responsibility when it comes to the maintenance and operation of air conditioning systems. These responsibilities must be clearly stated in the lease agreement so we suggest to refer to it to clarify who is responsible for what but in most cases the Landlord must service the unit with a licensed technician at least once a year and defending on the system every six months if necessary andthe Tenant should change the air conditioning filter and clean the drain line on a monthly basis. We emphasize to use good quality filters for the proper operation of the system and maintain good indoor air quality which is in the best interest of Tenants, who may also be responsible for system repairs if the failure is due to not changing air filters or using low quality filters. They may also be responsible for clogged drains if proper cleaning has not been done. As always refer to the lease agreement for each party’s responsibilities and remember complying is in everybody’s best interest.


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No question that one of the secrets for success in rental investment real estate is to minimize vacancies and turn overs. The longer a tenant stays in a property the better return on the investment. Ideally a tenant will rent a property once and stays there forever, renewing the lease agreement year over year. We all know this would be the goal in a perfect world but we also know is not reality and tenants will someday move out because of job relocations, purchasing a home or many other changes in life. When a tenant gives notice to move out at the end of the lease, most landlords want to put the property on the market right away to avoid or minimize vacant days in between tenants. Especially when the existing tenant is a good tenant that has taken care of the property and behaves professionally. Although this would be ideal that the existing tenants moves out on the last day of the month and the new tenant moves in a couple of days later, we are going to discuss why this is not a good practice and it may work against our investment goals. Here are some issues with trying to market and lease a property while occupied: If the landlord or agent is going to show the property entering the premises with tenant's permission and prior notice, a potential liability is created. You are showing the property basically to strangers that walk around the unit while tenant's personal belongings may be exposed or at an easy reach. What happens if the current tenant calls you later for example, stating that her new expensive gold watch and some jewelry , that was kept inside a drawer in her bedroom, disappeared. Or that the cell phone that he left charging in the kitchen is no longer there after your showed the property yesterday afternoon. Over the years we have heard, and thank God it has never happened to our company, that incidents like this have occurred. Our President, Gaston Reboredo, remembers that back in the early nineties the Realtor Association of Coral Gables (at the time) issued a warning to Realtors that there were two professional thieves posting as a couple wanting to lease expensive homes in the area and while one distracted the agent the other one went through drawers looking and stealing jewelry. So many things can happen and this liability is present when showing occupied units. maybe not the most important issue of the ones we are discussing today but one that must be taken into consideration. If on the contrary the current tenant is present at all showings, then it becomes a logistic problem. How do you show the property during business hours? Most likely your existing lease agreement gives you the ability to show the premises with sufficient notice to the tenant but you cannot force the current tenant to leave work to go to the unit for a showing. Then during the evenings and weekends how many times you bother the tenant? and how many times the tenant is not available at the precise time the prospective tenant wants to see the unit. The existing tenant may be running errands at the requested time of showing and the alternative time offered by the current tenant may not be good for the prospective tenant so the whole matter becomes a logistic nightmare. Let's say the current tenant is always available to show the unit, which is not reality, then another problem arises. Even the best tenant the most organized and clean person in the world when it comes time to moving a process of packing starts, putting things into boxes, stuff and boxes all over the house preparing for move out date. It is not easy to show a property while the current tenant is in the process of preparing to move out and it is very difficult for the property to be properly presented to the prospective tenant and for this prospective tenant to really see the unit and see it as his or her new home. Besides the issues discussed, even if we can deal with the liability stated in item 1 above and we have permission to access the unit at any time, we face another problem. Again even the best tenants that are Mr or Mrs Clean, have to run to work or school in the morning and if we are talking about families now they need to get the kids ready as well, not having enough time to have the premises in the best possible condition for a showing. It is not rare that you arrive to show a property to a prospective tenant and the pots and pans are dirty in the kitchen sink, the smell of a recently cooked meal is all over the place, towels on the bathroom floor and beds not made, not to mention the underwear that was unintentionally left somewhere. And if we are talking about evening showings in the middle of family dinner, kids doing homework or tenants watching TV, who by the way did not have enough time to prepare the home when they got back from work, we are looking at not ideal situations to present a property. Difficult to attract good new residents if the property cannot be showcased professionally and in the proper way. Also if your properties are not properly presented you will not only be wasting time in trying to rent them but your reputation as a landlord in the Realtor and Leasing community will be affected. Then we need to discuss other potential problems that may end up in legal liability to the landlord. Let's discuss a scenario where the current tenant was very cooperative, present at all showings and the home was pristine at every showing. Let's say the current tenant is leaving at the end of the month because of a job relocation out of the City, or another location in the same City, needing to rent a closer unit to the new employment location or because of the purchase of a home for the first time, achieving the dream of homeownership. Then you sign the lease with the new tenant to start the new tenancy during the first few days of the following month after current tenant vacates. What if the new place current tenant is moving to is not ready or the Home Owners Association required approval has not been issued and the move in date has to be delayed and current tenant cannot leave the premises before the start of the new lease with the new resident? what if the closing on the first home is delayed due to the numerous reasons real estate closings are delayed? In both cases current tenant will remain in the premises and yes you may be able to charge double rent by law or by lease agreement but the only way to force the current tenant to vacate is through an eviction process which may take in South Florida 30 to 45 days or more, depending in the area and if it is contested or not by the tenant. Meanwhile you have a contractual agreement with the new tenant to deliver the premises at certain date which now is going to be impossible but the new tenant already gave notice to vacate to that other landlord and is obliged to deliver the premises at the expiration of that rental agreement or face the same liability of double rent, eviction, etc. And it does not stop here, the new tenant may have arranged and paid deposits to move in companies, scheduled utility turn on services, requested mail forwarding, etc. You can see liability, legal costs and problems all over a situation like this, that happens very frequently. These are sonly ome of the problems all landlords face when trying to rent a property while tenant occupied, thinking they will be able to eliminate or significantly reduce the vacant time. In summary, best practices call for avoiding to show properties while rented to existing tenants. Plan properly, have your maintenance team ready to come in as soon as the existing tenant moves out and turn, in a couple of days or so, the property into rent ready condition so you can start marketing it to lease showcasing it in a clean, professional way, to attract good new residents in the shortest possible period of time . A property that is properly exposed to the rental market will rent faster, for more money and to better tenants with the least amount of problems to all parties. At the end you want a good new resident that pays rent on time, takes good care of the property and renews the rental agreement for as lomg as possible reducing the vacancy to the minimum on a long term basis.
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