check for cracks in the white ceramic or significant soot/pitting on the metal tips

Common Questions Is this a direct replacement for the 5SME39SL0904

After several failed attempts

Engineered specifically for natural gas water heaters

provided the voltage ratings (120V primary/24V secondary) match

Bard HVAC 8406-075 Pressure Switch 324846-701 check for cracks in theThe Bard HVAC 8406 075 Pressure Switch is a critical safety and operational control designed specifically for Bard wall mount units, heat pumps, and air conditioning systems. This high precision air pressure switch is factory calibrated to a setpoint of . 65" WC + . 05", ensuring that your system maintains appropriate airflow and venting conditions before allowing the ignition or cooling cycle to proceed. For technicians troubleshooting short cycling