Mini-Split Maintenance

What This Service Includes

Mini-split systems are incredibly efficient and reliable, but they still need regular maintenance to perform their best. Our comprehensive maintenance service covers all the critical components of your ductless system, whether you have a single indoor unit or a complex multi-head setup.

• Clean indoor unit filters and air intake grilles
• Deep clean indoor evaporator coils
• Clean outdoor condenser coils
• Inspect and clean condensate drain lines
• Check refrigerant pressures and temperatures
• Test electrical connections and components
• Verify proper airflow and temperature output
• Inspect line set insulation and connections
• Test remote control and thermostat operation
• Clean outdoor unit housing and clear debris
• Performance testing and efficiency verification
• Smart home integration check (if applicable)

Why Mini-Split Maintenance Matters

Ductless mini-split systems are popular in Phoenix for good reason—they're efficient, quiet, and provide excellent zone control. But Phoenix's extreme heat and dust put extra stress on these systems. Regular maintenance keeps them running at peak efficiency and prevents costly breakdowns.

• Efficiency: Clean coils and filters keep your system operating at maximum efficiency, reducing energy costs
• Longevity: Well-maintained mini-splits can last 20+ years, but neglected systems often fail in under 10
• Air quality: Regular filter and coil cleaning prevents mold, bacteria, and dust buildup
• Prevent breakdowns: Catch small issues before they become expensive repairs
• Warranty protection: Most manufacturers require proof of annual maintenance to honor warranties

Phoenix-Specific Considerations

Phoenix's climate is particularly demanding on mini-split systems:

• Extreme heat: Outdoor units work overtime in 110°F+ temperatures, stressing components
• Dust and debris: Desert dust clogs filters and coils faster than in most climates
• Extended cooling season: Systems run 8-10 months per year, accelerating wear
• Monsoon season: Dust storms and haboobs can pack outdoor coils with debris
• UV exposure: Intense sun degrades plastics, insulation, and electrical components

Because of these factors, we recommend mini-split maintenance at least once per year in Phoenix, preferably in early spring before the brutal summer heat arrives.

Multi-Head Systems: Our Specialty

At TNT Fix, we have hands-on experience maintaining complex multi-head mini-split systems. Our lead technician runs a 9-head mini-split system in his own home, giving us real-world insight into the unique challenges of multi-zone setups.

• Zone balancing: We verify each head is cooling/heating properly relative to its zone size
• Refrigerant distribution: Multi-head systems require precise refrigerant balancing across all heads
• Individual head service: Each indoor unit gets individual attention—filters, coils, drains, and performance
• Central outdoor unit: We thoroughly service the outdoor unit that feeds all zones
• Line set inspection: With multiple refrigerant runs, we check all connections and insulation

What We Look For During Maintenance

Our maintenance visits aren't just cleaning—we're actively looking for issues that could cause future problems:

Indoor Units

• Excessive dust buildup (indicates filtration or air sealing issues)
• Water leaks or condensation problems
• Unusual noises (bearing wear, loose components)
• Weak airflow (clogged coils, failing fan motor)
• Ice formation on coils (refrigerant or airflow issues)
• Musty odors (mold growth in drain pan or coils)

Outdoor Units

• Debris buildup around unit (impacts airflow and efficiency)
• Damaged or deteriorating insulation on line sets
• Electrical component corrosion or wear
• Refrigerant leaks (oil spots, low pressures)
• Compressor health and performance
• Fan operation and blade condition

Service Any Brand, Any Configuration

We service all major mini-split brands and configurations:

• Mitsubishi Electric
• Daikin
• Fujitsu
• LG
• Samsung
• Carrier
• Trane
• And others

Whether you have a single-zone system in a bedroom or a complex multi-head setup cooling your entire home, we have the experience and tools to maintain it properly.

Smart Home Integration Check

Many modern mini-splits offer Wi-Fi connectivity and smart home integration. As smart home specialists, we can:

• Verify your mini-split is properly connected to Wi-Fi
• Test manufacturer app functionality
• Integrate with Alexa, Google Home, or Apple HomeKit (where supported)
• Set up Home Assistant or other advanced automation platforms
• Configure scheduling and automation for maximum efficiency
• Troubleshoot smart thermostat integration issues

Maintenance Frequency Recommendations

How often you should service your mini-split depends on several factors:

Annual Maintenance (Recommended for Most Systems)

• Standard residential use
• 1-3 indoor heads
• Normal Phoenix dust exposure
• Schedule in early spring (March-April) before peak cooling season

Semi-Annual Maintenance

• Multi-head systems (4+ heads)
• Heavy use (24/7 operation)
• High dust environments (construction nearby, unpaved areas)
• Commercial or rental properties
• Schedule in spring and fall

Between Visits: DIY Filter Cleaning

You can maintain your system between professional visits by cleaning the filters monthly:

1. Open the front panel of the indoor unit
2. Remove the filters (usually slide out or pop out)
3. Vacuum both sides of the filters
4. Rinse with water if heavily soiled
5. Let air dry completely before reinstalling
6. Wipe down the front panel and air intake grille

This simple 10-minute task can significantly improve efficiency and air quality between professional maintenance visits.

Pricing

• Single mini-split system: $149 (includes up to 2 indoor heads)
• Each additional head: $40
• Large multi-head systems (6+ heads): Contact for quote

Examples:

• 1 outdoor unit + 2 indoor heads = $149
• 1 outdoor unit + 4 indoor heads = $229 ($149 + $40 + $40)
• 1 outdoor unit + 6 indoor heads = $309 ($149 + $40 + $40 + $40 + $40)

What If We Find a Problem?

If we discover an issue during maintenance, we'll:

1. Explain the problem in plain language - No technical jargon or scare tactics
2. Assess urgency - Is it critical now, or can it wait?
3. Provide options - Repair, replace, or monitor
4. Give you pricing upfront - No surprises
5. Let you decide - We never pressure you to make repairs on the spot

Common repairs we handle include refrigerant leaks, condensate drain clogs, failed capacitors, fan motors, control boards, and more. The $149 maintenance fee can be applied toward same-day repairs if you choose to proceed.

Combine with Annual Maintenance Plan

If you have both central HVAC and mini-split systems, ask about our combined maintenance plans that cover all your cooling and heating equipment for one annual price.