Groen CC20-E Operator's Manual page 227

TROUBLESHOOTING
PROBLEM: UNIT WILL NOT TURN ON - (Continued)
Probable Cause
Pilot ignited but control panel
will not turn on.
Check pilot flame current.
Open CR1 coil.
7-6
Corrective Action
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 24VAC between ignit-
er terminals MV and MV-PV.
If 24VAC 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.
(Revised 1/02)