Is the source of water from the tank?
- Check for possible water seepage through foundation cracks. Did the water appear after a
heavy rain? (Non-Warranty)
Is the source of water from the T&P relief valve?- Place a bucket under the discharge piping of the T&P relief valve and monitor it for a day
or two. This is a procedure that can be done by the homeowner.
- If the T&P relief valve is the source, refer to the T&P Relief Valve section of this guide.
Check all connections – boiler connections, domestic connections…- Check all the boiler connections to the water heater. A build-up of corrosion is a sure sign
of a leak. (Non-Warranty)
- Check the boiler supply connections. Look at the welds where the spuds enter into the
outer tank. These can be cracked by using excessive force when connecting piping. (Non-
Warranty) If they are leaking and it is NOTrelated to an installation error or system
problem—*reason code 057.
- Check the domestic connections. Look at the welds where the spuds enter into the outer
tank. Excessive water hammering in the domestic system may crack these welds. (Non-
Warranty) If they are leaking and it is NOTrelated to an installation error or system
problem.—*reason code 058.
- Check the seal around the air vent for leaks.
- Check the drywell for leaks.
Action Item:
- To replace the drywell use the Replacement Kit. (See chart on Page 15, 17, 19 or 21)
- Apply sealant (i.e. Leaklok or Loctite) completely around threads in all applications.
* This may be a manufacturing defect. Please initiate a warranty claim with Weil-McLain
noting the reason code listed.
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