L.B. White Pilot - Manual (Page 66)

August 1999
8.6-1 1
Thermocouple
Servicing
Instructions
1. Disconnect the heater from its electrical supply and
close all fuel supply valves to the heater.
2. Remove the screw(s) that secure the pilot assembly to
the burner.
3. Pull down on the thermocouple to disengage its
retaining clip from the pilot bracket, or loosen the
attachment nut (if so equipped).
4. Remove the connector nut at the power unit on the gas
control valve.
5. To reassemble, reverse these procedures.
6. Reconnect the heater to its electrical supply and open
the fuel supply valves to the heater.
7. Light the pilot.
8. Start the heater and check for proper operation.
ATTENTION
■ The thermocouple is an important safety device
which works directly with the pilot safety control
valve. It should only be replaced with a
thermocouple that has proper tip length to
prevent pilot outages. See parts lists to order the
appropriate thermocouple.
■ When threading the thermocouple’s connector
nut back into the power unit on the pilot control
valve, thread the nut in finger tight and then snug
it in place with the appropriate wrench. DO NOT
USE UNNECESSARY FORCE WHEN TIGHTENING,
otherwise the power unit in the control valve may
be destroyed.
CAUTION
Allow the pilot assembly to cool before servicing.
Nut