Lighthouse REMOTE-4PN Series Operating Manual
3-16 248083317-1 Rev 4
• If the internal pump stops running, the Inlet air supply may be
obstructed and the pump protection circuit has turned the pump
OFF. The FLOW LED will also blink. To restore normal pump
operation, find and clear the obstruction and open the instrument
cover. Turn the switch OFF, wait a few seconds and turn the switch
ON. The pump should start and remain running. Contact
Lighthouse Technical Support if this fails to restore normal pump
operation.