Weil McLain Boiler Service & Repair
Certified experts in Weil McLain cast iron and high-efficiency boilers. From Ultra series condensing units to traditional GV Gold systems, we deliver exceptional service and repairs.
Weil McLain Product Lines We Service
Ultra Series
High-efficiency gas boilers
Models:
Key Features:
- 95% AFUE efficiency
- Stainless steel heat exchanger
- Built-in boiler protection
- AquaBalance technology
Evergreen Series
Condensing cast aluminum boilers
Models:
Key Features:
- 96.5% AFUE rating
- Cast aluminum heat exchanger
- 10:1 turndown ratio
- Multiple venting options
GV Gold Series
Cast iron water boilers
Models:
Key Features:
- 91.2% AFUE efficiency
- Cast iron construction
- Proven reliability
- Easy maintenance
CGa Series
Traditional cast iron boilers
Models:
Key Features:
- 84% AFUE rating
- Cast iron sections
- Natural or LP gas
- Residential/commercial use
Common Weil McLain Issues We Resolve
Boiler Not Firing
Unit won't start heating cycle
Solution: Check gas supply, verify control settings, test ignition system, inspect flame sensor
Error Code E02
Low water pressure error
Solution: Check system pressure, inspect for leaks, verify auto-fill valve operation, bleed air from system
Loud Banging Noises
Kettling or water hammer sounds
Solution: Flush heat exchanger, check water chemistry, verify proper flow rates, inspect expansion tank
Frequent Cycling
Boiler turns on/off repeatedly
Solution: Clean heat exchanger, check thermostat settings, verify proper sizing, inspect venting
No Hot Water
Heating works but no domestic hot water
Solution: Check diverter valve, inspect indirect tank, verify aquastat settings, test circulator pump
High Gas Bills
Increased fuel consumption
Solution: Clean burners, check combustion efficiency, inspect heat exchanger, verify outdoor reset settings
Need Weil McLain Service Today?
Our certified technicians specialize in all Weil McLain boiler models and series.
Frequently Asked Questions
How often should I service my Weil McLain boiler?
Weil McLain recommends annual maintenance before each heating season. This includes cleaning the heat exchanger, checking combustion efficiency, inspecting safety controls, and testing water quality. High-efficiency models like the Ultra and Evergreen series may require condensate trap cleaning twice yearly.
What is AquaBalance technology in Weil McLain Ultra boilers?
AquaBalance is Weil McLain's advanced water management technology that maintains optimal water temperature and flow throughout the system. It helps prevent thermal shock, reduces cycling, improves efficiency, and extends the life of the heat exchanger by maintaining consistent temperatures.
Can I convert my Weil McLain boiler from oil to gas?
While some Weil McLain models can be converted from oil to gas with proper burner replacement, it's often more cost-effective to replace the entire unit with a high-efficiency gas model. Conversion requires professional installation and may not achieve the efficiency of purpose-built gas boilers.
What is the expected lifespan of a Weil McLain boiler?
Cast iron Weil McLain boilers typically last 25-35 years with proper maintenance. High-efficiency models like the Ultra and Evergreen series have a 15-20 year expected lifespan. Regular maintenance, water treatment, and prompt repairs can significantly extend any boiler's service life.