Commercial VRF System Repair

VRF System Repair for Commercial Buildings

We support property managers, facility teams, and business owners who rely on VRF systems for efficient multi-zone
heating and cooling. When VRF performance drops or error codes appear, accurate diagnostics matter.
Our commercial technicians troubleshoot system logic, refrigerant management, and controls to resolve root causes
instead of temporary fixes.

VRF HVAC Repair and Commercial VRF Service

We provide full-scope VRF HVAC repair and commercial VRF service for a wide range
of system configurations, including heat recovery and heat pump VRF systems.

Our VRF repair services include:

• Variable refrigerant flow repair and diagnostics
• VRF heat pump repair
• System-wide troubleshooting and fault isolation
• Refrigerant leak detection and charge correction
• Control, sensor, and communication diagnostics

VRF systems require precise refrigerant management and system-level understanding. Our experience allows us to
identify the true failure point, not just the symptom.

Common VRF System Problems We Repair

VRF systems often experience issues that general HVAC contractors are not equipped to diagnose. We routinely repair:

• VRF error codes and system lockouts
• Indoor and outdoor unit communication failures
• Branch selector box and solenoid valve issues
• Inverter compressor and drive faults
• Capacity and performance loss
• Simultaneous heating and cooling failures
• Control board and network-related problems

Our VRF troubleshooting process focuses on restoring proper system logic, capacity, and long-term stability.

Mitsubishi VRF, Daikin VRV, and LG VRF Repair

We service major VRF manufacturers commonly installed in commercial buildings, including:

• Mitsubishi VRF repair (City Multi systems)
• Daikin VRV repair
• LG VRF repair

Manufacturer-specific knowledge is critical for accurate diagnostics, software interpretation, and proper repair execution.

VRF Heat Pump and Heat Recovery Systems

Commercial VRF platforms are commonly used for both heat pump and heat recovery applications. We service:

• VRF heat pump systems
• Heat recovery VRF systems with branch selector boxes
• Multi-zone VRF configurations

We address airflow, refrigerant distribution, and control sequencing issues that impact comfort, efficiency, and uptime.

Why Choose Armus Mechanical for VRF Repair

• Commercial-focused HVAC expertise
• Experience with complex VRF controls and inverter technology
• Accurate diagnostics without unnecessary equipment replacement
• Clear communication for property managers and facilities teams
• Reliable service for mission-critical commercial HVAC systems

Commercial Properties We Support

• Office buildings
• Retail and mixed-use properties
• Medical and professional offices
• Multi-tenant commercial spaces
• Warehouses and light industrial facilities

Related Commercial HVAC Services

Our VRF repair services are supported by our full commercial HVAC capabilities. Explore our
Commercial HVAC Services
for broader system coverage and commercial support.

• Commercial HVAC repair and maintenance
• Commercial heat pump service
• Commercial refrigeration repair
• Commercial boiler and hydronic heating service
• Rooftop unit repair

Service Areas

We provide commercial VRF system repair throughout:

• New Bedford, MA
• Fall River, MA
• Taunton, MA
• Dartmouth, MA
• Attleboro, MA
• Surrounding Southeastern Massachusetts and Rhode Island areas