(Revised 1/02)
TROUBLESHOOTING
7-6
PROBLEM: UNIT WILL NOT TURN ON - (Continued)
Probable Cause
Corrective Action
Pilot ignited but control panel
will not turn on.
Check pilot flame current.
Open CR1 coil.
Turn on oven power and check for 115VAC at the relay
will not turn on. board power input terminals. See
schematic diagram on page 4-19 or 5-19.
Contact Check
If 115VAC is measured, perform power supply check. See
page 8-3.
If 115VAC is not measured, check for 115VAC between
pilot detect relay terminals CR1-4 and CR1-7 (see page
4-19 or 5-19).
Coil Check
If 115VAC is not measured, turn off oven power. Refer to
schematic diagram (page 4-19 or 5-19) and continuity
check wiring. Replace a defective wire and/or wire
terminal.
If 115VAC is measured, check for 24VAC between CR1-A
and CR1-B (see page 4-19 or 5-19).
See page 8-9.
Perform CR1 coil continuity check (see page 4-19 or 5-19).
24VAC measured at coil. Turn off oven power and
replace pilot detect relay CR1.
24VAC not measured at coil. Refer to schematic diagram
on page 4-19 or 5-19, and check for 24V
AC between ignit
-
er terminals MV and MV-PV.
If 24V
AC is measured between terminals MV and MV-PV,
turn off oven power and check for a wiring problem
between CR1 and the igniter module. Replace broken
wire and/or terminal.
If 24VAC is not measured between MV and MV-PV,
replace igniter module. See page 8-51.
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