FAQs

Regular maintenance is needed to keep your Lennox or Mitsubishi ductless mini split system operating at peak performance. We recommend having the various components of your system checked and serviced by an HVAC professional at least once a year.

Installation costs can vary based on factors such as the number of indoor units, the complexity of the installation, and the size of your space. Our team will provide a detailed estimate before beginning the installation.

A clogged drain line or dirty filter could cause water to back up into the indoor unit. Eventually, the water will have nowhere else to go but down your wall or across your ceiling. Make sure you have a certified technician repair the issue right away to prevent water damage and mold growth.

Regular maintenance is needed to keep your Lennox or Mitsubishi ductless mini split system operating at peak performance. We recommend having the various components of your system checked and serviced by an HVAC professional at least once a year.

Installation costs can vary based on factors such as the number of indoor units, the complexity of the installation, and the size of your space. Our team will provide a detailed estimate before beginning the installation.

A clogged drain line or dirty filter could cause water to back up into the indoor unit. Eventually, the water will have nowhere else to go but down your wall or across your ceiling. Make sure you have a certified technician repair the issue right away to prevent water damage and mold growth.

Spring and fall tend to be ideal. Milder weather lets you plan ahead before summer demand peaks, and scheduling flexibility is typically better. That said, installation is available year-round, so don’t wait if your current system has already failed.

Repair costs vary depending on the component involved, the extent of the damage, and labor time. A minor fix costs substantially less than a refrigerant recharge or compressor replacement. We provide a transparent, detailed estimate before any work begins so you know exactly what you’re approving.

Peace of mind. An HVAC service contract gives you priority service, professional annual precision tune-ups, and increased savings and comfort. Systems usually break down on the hottest and coldest days. This usually causes a surge in calls to us that can mean service delays and additional expenses for you. A maintenance agreement gives you peace of mind because you know you’ll receive priority service and substantial savings on repairs.

H.J. Faust HVAC maintenance plan customers are always taken care of first!

We evaluate unit age, repair cost relative to replacement value, and system efficiency before making any recommendation. As a general guideline, if repair costs approach or exceed half the cost of a new system and the unit is more than 10–12 years old, replacement often makes better long-term sense.

Check your thermostat settings and clean the filters. If the issue persists, call a technician to inspect for refrigerant leaks or electrical problems.

In many like-for-like replacements, existing ductwork can be reused. Switching system types, upgrading to a significantly different unit size, or moving to a ductless configuration may require modifications. Our team evaluates your current ductwork as part of the home assessment.

Yes, Mitsubishi and Lennox mini splits offer both cooling and heating capabilities, making them a versatile solution for year-round comfort.

Yes, Mitsubishi and Lennox mini splits offer both cooling and heating capabilities, making them a versatile solution for year-round comfort.

Check your thermostat settings and clean the filters. If the issue persists, call a technician to inspect for refrigerant leaks or electrical problems.

The air filters in your indoor unit help maintain proper indoor air quality. They do so by trapping dust, pollen, and other particles. Over time, these filters can accumulate dust and reduce the efficiency of your air conditioner. Regular cleaning ensures optimal performance and improved indoor air quality.

The air filters in your indoor unit help maintain proper indoor air quality. They do so by trapping dust, pollen, and other particles. Over time, these filters can accumulate dust and reduce the efficiency of your air conditioner. Regular cleaning ensures optimal performance and improved indoor air quality.

Whether the unit is producing cold or hot air, the maintenance principles remain the same. However, it’s important to ensure that the outdoor components don’t collect ice, which can impair the system’s ability to heat your space.

Whether the unit is producing cold or hot air, the maintenance principles remain the same. However, it’s important to ensure that the outdoor components don’t collect ice, which can impair the system’s ability to heat your space.

Musty odors often mean mold or mildew, while electrical smells could indicate an overheating component. In either case, you should have a technician experienced in ductless systems inspect the unit to get to the bottom of the nasty smell.

Mini splits are designed for energy efficiency, and many models come with features that help you save on electricity costs.

Musty odors often mean mold or mildew, while electrical smells could indicate an overheating component. In either case, you should have a technician experienced in ductless systems inspect the unit to get to the bottom of the nasty smell.

Mini splits are designed for energy efficiency, and many models come with features that help you save on electricity costs.

Not always. Many existing thermostats are compatible with new AC units. Upgrading to a programmable or smart thermostat at the same time can improve efficiency and control, and our team can advise whether your current thermostat is the right fit for the new system.

Most standard repairs (fan motor replacement, capacitor swap, refrigerant recharge) can be completed in a single visit. More involved work, such as an evaporator coil replacement, may require additional time or a follow-up appointment depending on parts availability.

No. Customers with any of our HVAC annual maintenance programs never pay overtime charges.

Foul or musty odors from AC vents typically indicate mold or mildew growth inside the system, often in the evaporator coil or ductwork. This can affect indoor air quality and should be addressed promptly by a technician.

Clearing the area around the installation site and keeping pets and small children away from the work area makes the process smoother. Our team can walk you through any specific preparation steps when we schedule your appointment.

Yes, like any HVAC system, ductless mini splits benefit from regular maintenance to ensure optimal performance and longevity. Scheduling mini split maintenance with our team can help prevent potential issues and keep your mini split running smoothly.

Some frost is normal in cold weather, but if the entire outdoor unit freezes, there’s likely a problem that needs to be addressed by a professional air conditioning contractor. Our team can provide an effective solution.

Yes, like any HVAC system, ductless mini splits benefit from regular maintenance to ensure optimal performance and longevity. Scheduling mini split maintenance with our team can help prevent potential issues and keep your mini split running smoothly.

Some frost is normal in cold weather, but if the entire outdoor unit freezes, there’s likely a problem that needs to be addressed by a professional air conditioning contractor. Our team can provide an effective solution.

While some basic maintenance tasks like cleaning the air filter or wiping the units can be done by homeowners, it’s crucial to have an HVAC professional handle more intricate aspects, such as checking the electrical connections or refrigerant lines, to ensure the entire system is safe and efficient.

While some basic maintenance tasks like cleaning the air filter or wiping the units can be done by homeowners, it’s crucial to have an HVAC professional handle more intricate aspects, such as checking the electrical connections or refrigerant lines, to ensure the entire system is safe and efficient.

The ideal temperature for a mini split system depends on personal comfort preferences and energy efficiency goals. Generally, a range of 72-78°F is considered comfortable, but adjusting it slightly lower in summer and higher in winter can help save energy and reduce utility costs while maintaining comfort.

The ideal temperature for a mini split system depends on personal comfort preferences and energy efficiency goals. Generally, a range of 72-78°F is considered comfortable, but adjusting it slightly lower in summer and higher in winter can help save energy and reduce utility costs while maintaining comfort.

Check if the thermostat is set too low or too high. If not, there might be an issue with the system’s calibration. Call our professionals today for an immediate repair!

Yes, it’s possible. Multiple indoor units can be installed throughout the house for precise temperature control.

Check if the thermostat is set too low or too high. If not, there might be an issue with the system’s calibration. Call our professionals today for an immediate repair!

Yes, it’s possible. Multiple indoor units can be installed throughout the house for precise temperature control.

Clearing the area around the installation site and keeping pets and small children away from the work area makes the process smoother. Our team can walk you through any specific preparation steps when we schedule your appointment.

If your air conditioning system’s evaporator coil becomes covered in ice, it can impair cooling efficiency. Common causes include restricted airflow due to dirty filters or blocked vents, low refrigerant levels, or issues with the blower motor. Our experts can diagnose the problem and implement the necessary repairs to prevent freezing.

Water around your indoor unit usually means a clogged condensate drain line or dirty evaporator coils overflowing the drain pan. Both are straightforward repairs when caught early but can cause water damage if left unaddressed.

These systems are designed to operate quietly. The indoor units typically produce a low hum, while the outdoor unit operates with minimal noise.

AC installation requires EPA refrigerant handling certification, specialized tools, and electrical work that carries real safety risk. DIY installation also typically voids manufacturer warranties and risks improper sizing. We strongly recommend using a licensed, certified contractor.

“Auto” is the ideal setting for ductless systems because it allows the system to self-regulate based on your desired temperature. In this mode, the indoor units will automatically switch between heating and cooling modes, ensuring a consistent temperature throughout your home.

“Auto” is the ideal setting for ductless systems because it allows the system to self-regulate based on your desired temperature. In this mode, the indoor units will automatically switch between heating and cooling modes, ensuring a consistent temperature throughout your home.

These systems are designed to operate quietly. The indoor units typically produce a low hum, while the outdoor unit operates with minimal noise.

Yes, Lennox and Mitsubishi mini splits are an excellent option for older homes without existing ductwork since they can be installed with minimal disruption.

Cleaning the basic components of your mini split system is fairly simple. Every four to six weeks, follow these steps:

• Turn Off the System: While you won’t be messing with any coils or electric components, it’s still important to put your safety first. Before starting to clean the indoor unit, ensure the system is turned off and unplugged.
• Wipe Down the Unit: Using a damp cloth, gently wipe the exterior of the unit. Follow up with a dry cloth to prevent moisture buildup. You can also use a gentle cleaner recommended by the manufacturer.
• Clean or Change the Filter: Remove the filter and gently wash it with water and mild soap if reusable. Otherwise, replace it with a new filter.
• Clean the Condensate Pan: Carefully check the condensate pan for debris or buildup, then clean it to prevent mold or water damage.
• Turn the System Back On: Once you’ve finished these tasks, plug the unit back in and turn it on.

Remember, leave all other tasks, such as cleaning the condenser coils or inspecting electrical components, to air conditioning professionals like H.J. Faust. We will keep your Mitsubishi or Lennox mini split system in top shape while protecting your safety.

Cleaning the basic components of your mini split system is fairly simple. Every four to six weeks, follow these steps:

• Turn Off the System: While you won’t be messing with any coils or electric components, it’s still important to put your safety first. Before starting to clean the indoor unit, ensure the system is turned off and unplugged.
• Wipe Down the Unit: Using a damp cloth, gently wipe the exterior of the unit. Follow up with a dry cloth to prevent moisture buildup. You can also use a gentle cleaner recommended by the manufacturer.
• Clean or Change the Filter: Remove the filter and gently wash it with water and mild soap if reusable. Otherwise, replace it with a new filter.
• Clean the Condensate Pan: Carefully check the condensate pan for debris or buildup, then clean it to prevent mold or water damage.
• Turn the System Back On: Once you’ve finished these tasks, plug the unit back in and turn it on.

Remember, leave all other tasks, such as cleaning the condenser coils or inspecting electrical components, to air conditioning professionals like H.J. Faust. We will keep your Mitsubishi or Lennox mini split system in top shape while protecting your safety.

In many cases, you can use your existing thermostat with a new air conditioning unit. However, depending on the compatibility of the thermostat and the HVAC system, you might consider upgrading to a more advanced thermostat to maximize energy savings and control.

Yes, Lennox and Mitsubishi mini splits are an excellent option for older homes without existing ductwork since they can be installed with minimal disruption.

Yes, many modern mini split systems come with remote controls or can be integrated into smart home systems for remote management.

Regular maintenance is essential to ensure the longevity and efficiency of your new air conditioning unit. Change or clean the air filters regularly, keep the outdoor unit free from debris, and schedule annual AC maintenance to keep your system running smoothly.

When ductless mini split systems emit a fishy odor, it’s often a sign of mold or mildew buildup in the condensate pan, filters, or coils. It doesn’t take much for mold spores to form in these places when the unit isn’t draining properly and when it hasn’t been maintained on a regular basis. Make sure you contact H.J. Faust immediately if you notice a fishy smell to protect your family’s health and the system’s functionality.

When ductless mini split systems emit a fishy odor, it’s often a sign of mold or mildew buildup in the condensate pan, filters, or coils. It doesn’t take much for mold spores to form in these places when the unit isn’t draining properly and when it hasn’t been maintained on a regular basis. Make sure you contact H.J. Faust immediately if you notice a fishy smell to protect your family’s health and the system’s functionality.

Yes, many modern mini split systems come with remote controls or can be integrated into smart home systems for remote management.

The size of the mini split will depend on the square footage of the space you want to cool/heat. Our installation technicians will perform a thorough assessment during the consultation to recommend the most appropriate system size.

An improperly sized AC unit can lead to a host of cooling problems in your Burlington home. For example, an undersized unit will struggle to maintain the desired temperature, resulting in hot spots, discomfort, and increased energy consumption. Conversely, an oversized unit will cycle on and off more frequently, leading to inefficient operation, higher energy bills, and reduced equipment lifespan.

Our HVAC technicians are highly adept at performing a thorough load calculation to determine the optimal size unit for your home. This calculation considers factors like square footage, insulation levels, window size and orientation, and sun exposure. If you want to enjoy optimal comfort, energy efficiency, and long-term system health, ask our team today about our HVAC services.

The size of the mini split will depend on the square footage of the space you want to cool/heat. Our installation technicians will perform a thorough assessment during the consultation to recommend the most appropriate system size.

Uneven cooling typically points to ductwork issues, undersized equipment, or insufficient insulation in certain areas of the home. A diagnostic visit lets us identify whether the fix is a duct repair, a zoning adjustment, or an equipment upgrade.