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Weil McLain 510-300-014 Manual Reset Spill Switch 240°F

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Special Price $48.36 Regular Price $62.86
In stock
SKU
510-300-014
The Weil McLain 510-300-014 Spill Switch is a control component that senses spillage of flue gas in the HVAC systems. It checks the conditions of the combustion chamber or vents and its contact when the temperature is above 240°F, indicating a draft or obstruction. The switch should be manually reset after being tripped. It is a vital secure interlock fitted in the venting or draft hood of a boiler or a furnace and it stops further operation of the burner in case of hazardous exhaust conditions.
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HVAC Controls & Electrical, Switches,
Manufacturer:
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Manufacturer Name: Weil McLain
Product Number: 510-300-014
OEM Part Number: 510-300-014
Product Description: 240F Spill Switch M/R
Weight:0.02lbs/9.07g

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Product Questions (2)
Customer Questions
What maintenance is required for the Weil McLain 510-300-014 Spill Switch?

Regular inspection of the spill switch and its mounting is required to ensure accurate detection of flue gas spillage. Keep wiring connections tight and free of corrosion. Test operationality during boiler service and ensure vent pathways remain unobstructed for safety.

What are common issues with the Weil McLain 510-300-014 Spill Switch?

  • False tripping from dust or soot buildup.
  • Wiring corrosion or loose electrical connections.
  • Sensor degradation from high temperature exposure.
  • Improper installation leading to nuisance shutdowns.
  • Vent blockage causing alarm activation.

Installation Steps

Step 1: Turn off main power supply to unit and allow system to cool fully to avoid burn risk.

Step 2: Remove old spill switch and note wiring positions carefully before disconnection.

Step 3: Mount new spill switch at same placed ensuring secure and level fit.

Step 4: Connect wires matching original terminals and tighten firmly.

Step 5: Restore power and test for proper shutoff response under overheating condition.