If you are a homeowner who installed your own boiler and are not a professional heating contractor, you must contact the distributor/dealer who sold you the boiler for technical support and warranty action.
FAQs
Weil-McLain relies solely upon independent heating professionals in your area to install, maintain and troubleshoot Weil-McLain products. We do not employ heating technicians who come out to repair your boiler, nor do we have factory-authorized services. Please contact a heating professional in your area. If needed, your heating contractor can contact our area office or our technical service department for assistance with trouble-shooting problems.
Problems & Troubleshooting
I installed my own boiler. How do I get technical support?
Can I get an expert from Weil-McLain to troubleshoot my boiler at home?
Weil-McLain® relies solely upon independent heating professionals in your area to install, maintain and troubleshoot Weil-McLain products. We do not employ heating technicians who come out to repair your boiler, nor do we have factory-authorized servicers. Please contact a heating professional in your area. If needed, your heating contractor can contact our area office or our technical service department for assistance with trouble-shooting problems.
I just need a part number for a component on my boiler.
Please feel free to use our Parts Selector Tool. You will need to know the model, size, and series of your boiler for most accurate results. For your safety and product longevity, Weil-McLain highly recommends using a heating professional to change any parts or perform any kind of maintenance service.
What should I do if my heating system is not working correctly?
Please contact your local heating professional to troubleshoot your system. Your heating professional can contact a Weil-McLain distributor or our technical service department for additional assistance.
How can I get an expert from Weil-McLain to troubleshoot my boiler?
Weil-McLain® does not employ heating technicians who come out to repair your boiler, nor do we have factory-authorized servicers. We rely upon independent heating professionals in your area to install, maintain and troubleshoot Weil-McLain products. Please contact a heating professional in your area. If needed, your heating contractor can contact our area office or our technical service department for assistance with trouble-shooting problems.
Warranty Procedures
How do I file a warranty claim?
Your professional heating contractor should return warranty items to your local area wholesale distributor for credit. Weil-McLain accepts the Warranty Claim from heating contractors.
For warranty consideration, the defective item(s) should be returned to the same wholesale distributor where the replacement was purchased. At that time, claim credit or denial will be processed based on the findings. Credits for warranties are processed through the wholesale distributor; Weil-McLain does not reimburse consumers directly.
Who do I call if my boiler is leaking?
If your boiler is leaking, contact your installer or a professional heating contractor of your choice or use our Contractor Locator for a list of contractors in your area. If the boiler is leaking and the component part is under warranty, a heating professional may submit a warranty claim on your behalf.
How do I clean a steam boiler?
To clean a steam boiler, a heating professional can:
- Use one pound of trisodium phosphate for every 50 gallons of water content.
- Heat the boiler to 180°F; hold at 180°F for two hours.
- Do not allow the boiler to make steam.
- After two hours, drain the boiler and fill with fresh makeup water. Water treatment chemicals should be reviewed before they are introduced into the boiler. Foaming agents that will interfere with steam action are of particular concern. Sodium carbonate (up to one pound for every 30 gallons) or sodium hydroxide (lye) (up to one pound for every 50 gallons) may be used.
- Check pH level after cleaning. It should be between 7 and 8.5. A small amount of cleaner may be added to adjust the pH up to the proper range.
- DO NOT use petroleum-based products in the boiler.
How do I clean a cast iron hot water boiler?
To clean a cast iron boiler, a heating professional can:
- Use one pound of trisodium phosphate for every 50 gallons of water content.
- Fill, vent and circulate the system with above mixture, allowing it to reach design or operating temperature if possible.
- After circulating a few hours, drain the system completely and refill with fresh water. Usually, enough of the cleaner will adhere to the piping to give an alkaline solution satisfactory for operation: a pH reading between 7 and 8.5. Sodium carbonate (up to one pound for every 30 gallons of water content) or sodium hydroxide (lye) (up to one pound for every 50 gallons) may be used.
- Check pH level after cleaning. It should be between 7 and 8.5. A small amount of cleaner maybe added to adjust the pH up to the proper range.
- DO NOT use petroleum-based products in the boiler.
General Product Information
What is a CP number?
This number is used to identify parts for your boiler, track service history, and aid in the registration and warranty claim processes. Your heating professional should have this number handy prior to any troubleshooting with Weil-McLain Technical Support.
Where can the CP number for my boiler be found?
The CP number for your boiler will be printed on a small rectangular barcode sticker on either side of the boiler jacket. For some models such as the ULTRA, the CP number may be inside the boiler jacket near the heat exchanger. If you know your boiler model but do not know where to find your CP on your boiler, use our CP Location Reference Guide to verify location of the CP number by model.
What size boiler is appropriate for my house or business?
Your local heating professional should perform a heat-loss estimate based upon the size and construction of your home before recommending a boiler size and model.
Where can I buy Weil-McLain products?
Weil-McLain does not sell direct to consumers. Our products are sold exclusively through our wholesale distributors to contractors. If you are a heating contractor, contact your local wholesale distributor for pricing and availability. For distributors near you, use our Distributor Locator. If you are a homeowner, facility manager or building owner, contact licensed professional heating contractors for price quotes. Use our Contractor Locator.
How can I obtain Weil-McLain product manuals?
What are the MEA numbers for Weil-McLain products?
MEA applications received after July 1, 2008 are no longer accepted. Application and other submission requirements are being returned and will not be processed under the previous MEA administrative provisions.
The functions of the MEA division have been absorbed by the Office of Technical Certification and Research (OTCR). Refer to the OTCR webpage for information regarding policies and procedures for recognizing materials and equipment under the new administrative provisions. https://www.nyc.gov/site/buildings/codes/technical-certification-research.page
System Operation
Can I use anti-freeze to protect my system?
Certain types of anti-freeze can be used with Weil-McLain® boilers. We recommend your hired heating professional use an anti-freeze designed for hydronic systems and formulated with inhibited propylene glycol, a non-toxic antifreeze. Do not use automotive antifreeze.
What are the proper temperature settings for my boiler?
The average setting for a forced hot water system is 180°F (lower for in-floor heating). It can be raised as high as 210°F if needed in severe weather. For systems that use coils to heat domestic hot water, the high limit setting is 210°F and the low limit setting 140°F. A differential setting of 15°F is recommended for the optimum amount of domestic hot water.