Carrier HH18HA199 Limit Switch 322838-753 For technicians troubleshooting a Carrier

For technicians troubleshooting a Carrier Error Code 31

the Robertshaw 900-106 Gas Pressure Test Kit is the dependable solution for ensuring optimal combustion efficiency

This assembly features a 5/32" orifice

controlled environment is essential to preserve functionality before field deployment

check for a dirty furnace filter

Carrier HH18HA199 Limit Switch 322838-753 For technicians troubleshooting a CarrierThe Carrier HH18HA199 Limit Switch is a critical safety component designed for high temperature monitoring in HVAC induction combustion furnaces and residential heating systems. This genuine OEM replacement part is calibrated to trigger at a fixed 200 degree opening temperature, automatically interrupting the electrical circuit via its SPST (Single Pole Single Throw) configuration to prevent heat exchanger damage or hazardous rollout conditions.