Bard HVAC 8402-124BX Limit Switch 321894-706 When should I replace this

When should I replace this capacitor

Common Questions What shaft sizes does the KH10 support

Broad Pressure Window: Reliable operation from 5 to 150 PSI

it is built to withstand high-temperature combustion environments while preventing carbon buildup that leads to nuisance lockouts

Bard HVAC 8402-124BX Limit Switch 321894-706 When should I replace thisThe Bard HVAC 8402 124BX Limit Switch is a critical safety component designed for high temperature monitoring in Bard wall mount units and gas electric furnaces. Engineered with an L270 30 specification, this fixed temperature limit control is calibrated to open the electrical circuit at 270F, protecting the heat exchanger from structural damage and preventing unsafe operating conditions. The 30F differential ensures the switch resets automatically