Williams 2903511 Installation Instructions And Owner's Manual page 24

S – Combustion Blower Motor
M1 – Overheat Thermostat
M2 - Fan Thermostat
Williams Furnace Co., 250 West Laurel Street, Colton, CA 92324 U.S.A.
RP8 : Flame
Part Number: JLTT015
Sensor
RP7: Spark Igniter Part Number: JLTT023
(2 pieces)
Part Number: JMTR020
Part Number: JTRM006
Part Number: J12301018
Fan Blades Part Number:
(4 Pieces) VVNT003-VVNT002
M - Fan Motor Part Number:
(2 Pieces) JMTR018