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IGNITION SYSTEM OPERATION
OHMS LAW:
I = E/R
AMPS = VOLTAGE DIVIDED BY RESISTANCE
A cold ignitor has a high resistance. When the oven control relay closes—
IGNITOR
OVEN CONTROL
RELAY
BIMETAL
COIL
NL1
LO HI
OHMS
Current flows through the ignitor and the bimetal coil.
IGNITOR
OVEN CONTROL
RELAY
BIMETAL
COIL
NL1
LO HI
OHMS
High ignitor resistance causes low current flow through the bimetal coil. As the ignitor heats up, its
resistance decreases.
IGNITOR
OVEN CONTROL
RELAY
BIMETAL
COIL
NL1
LO HI
OHMS
LO HI
AMPS