Brand Repair Page
WaterFurnace Geothermal & Water-Source Heat Pump Repair in NYC
AM Profs Inc diagnoses and repairs WaterFurnace geothermal ground-source heat pumps and commercial water-source units across New York City apartment buildings and high-rises using shared boiler/tower loop systems. If a coaxial heat exchanger is scaling up or an Aurora control shows a fault, we start from the actual fault.
24/7 urgent repair is available for WaterFurnace units, including weekends and holidays. A no-heat or no-cooling call affecting a building's loop system is treated as urgent.
Covered Equipment
Residential geothermal ground-source heat pumps
Versatec commercial water-source heat pumps
Coaxial heat exchangers
Aurora control boards / Symphony thermostats
WaterFurnace's water-source heat pumps are particularly relevant for NYC apartment buildings and high-rises running a shared boiler/tower water loop, where individual units draw from and reject heat to that common loop.
Quick Answer
What is the most common WaterFurnace repair issue in NYC?
The most common issue on WaterFurnace water-source units is coaxial heat exchanger scaling or restricted water flow within the building's loop system — both require regular flushing and descaling to prevent compressor failure. True residential geothermal units (ground loop, not building loop) see more conventional refrigerant and control-board issues.
Last updated: July 2026
Why WaterFurnace Repairs Need Brand-Specific Service
WaterFurnace was an early adopter of microprocessor-based controls in geothermal equipment, specifically through its Aurora control system — a genuine step forward in diagnostic capability for ground-source heat pumps at a time when much of the category still relied on simpler electromechanical controls.
The company was founded in 1983 in Fort Wayne, Indiana, established as an early pioneer bringing geothermal ground-source heat pump technology to the broader market. NIBE Industrier AB, a Swedish heating technology company, acquired WaterFurnace Renewable Energy, Inc. in 2017 and owns the brand today.
What Makes The Brand Different
Building loop systems need loop-aware diagnostics
In NYC, WaterFurnace's commercial Versatec water-source heat pumps are commonly tied into a shared building loop fed by a central boiler and cooling tower — a completely different service context from a standalone residential geothermal ground loop, since a fault can originate at the individual unit or in the shared loop water quality/flow itself.
Coaxial heat exchangers are the specific wear point to watch: scaling or flow restriction in the loop water directly degrades heat transfer and, left unaddressed, stresses the compressor toward failure.
WaterFurnace Systems We Service
Common symptoms, likely causes, what we check first, and when to call for each system type.
Commercial Water-Source Heat Pump (Building Loop)
Common symptoms: Reduced heating/cooling capacity, unit trips on a high- or low-pressure fault, or unusual compressor noise.
Likely causes: Coaxial heat exchanger scaling, restricted loop water flow, or a refrigerant charge issue.
What we check first: Heat exchanger scaling level, loop water flow rate, and refrigerant pressures.
What work is done: Heat exchanger descaling/flushing, flow correction, and refrigerant service.
When to call: If capacity has dropped or the unit is tripping on pressure faults.
Residential Geothermal Ground-Source Heat Pump
Common symptoms: Unit runs constantly without reaching temperature, or the Aurora control shows a fault.
Likely causes: Ground loop flow issue, refrigerant charge problem, or a control board fault.
What we check first: Ground loop flow, refrigerant charge, and Aurora control diagnostics.
What work is done: Loop flow correction, refrigerant service, and control board diagnostics or replacement.
When to call: If the unit runs constantly without reaching set temperature.
Frequently Asked Questions
What's the difference between WaterFurnace's residential and commercial units?
Residential geothermal units draw from a dedicated ground loop specific to that building, while commercial Versatec units in NYC apartment buildings typically tie into a shared boiler/cooling-tower loop serving many units — the diagnostic approach differs accordingly.
Why does my WaterFurnace unit need descaling?
The coaxial heat exchanger can scale up from loop water quality over time, which restricts heat transfer and can stress the compressor if left unaddressed — regular flushing prevents this.
What is the Aurora control system?
It's WaterFurnace's microprocessor-based control platform for diagnostics and operation on geothermal and water-source units.
Who owns WaterFurnace?
NIBE Industrier AB, a Swedish heating technology company, which acquired WaterFurnace in 2017.
What areas of NYC do you cover for WaterFurnace repair?
We schedule WaterFurnace repair across Manhattan, Brooklyn, Queens, and the Bronx.