O2 Sensor Replacement

Replacement Procedure:

• Step 1. Identify sensors that need to be replaced using the Booth Oxygen Sensors Chart. Step 2. Fill in the serial number, date installed, and next replacement month fields on the Oxygen Sensors Chart.

• Step 3. Mark the front of the O2 sensor with the date.

• Step 4. Open the booth monitoring panel and remove the O2 sensor relay for the booth about to be worked on. Step 5. Place the relay in the bottom of the cabinet with a label marking which booth it is for and close the cabinet.

• Step 6. Disconnect the brown wire at the bottom of the sensor. Unclip the existing O2 sensor by squeezing the sides and pulling outward. Step 7. Replace the new sensor aligning the pins and bracket holes and push inward until it seats. Reconnect the brown wire to power the unit (alarm will sound this is normal) and close the sensor panel. *Note* Only fasten one screw since it is likely that the sensor will need to be reset by disconnecting and reconnecting the brown wire.

• Step 8. Select the booth in question on the booth monitor panel display and ensure that the sensors are reading correctly within the parameters in green. *Note* If the sensors are reading outside the required parameters troubleshoot further

• Step 9. If the sensors do not continue to alarm repeatedly then replace the relays within the booth monitoring panel and close the cabinet. Step 10. Dispose of the used sensors and order new ones (depending on current stock min/max 3/5).