Groen CC20-E Operator's Manual page 211

SERVICE CODES
Service Code 5 (Old Electronics Only)
Prior to Serial Number GC7243MS
Table 5 provides information for troubleshooting when on a service call. The
columns list probable cause, replacement parts and special tools needed, and a
page reference to the service instructions. Proceed through the Probable Causes
in the sequence shown in the table. If the corresponding Corrective Action does
not correct the problem, proceed to the next Probable Cause and so forth, until the
problem is corrected.
Table 5 - Troubleshooting Service Code 5
Probable Cause
Be sure oven is disconnected from branch circuit power before performing any repair work.
Drain temperature probe
harness may not be
securely connected to
the control panel.
Drain temperature probe
Drain temperature probe
may not be correctly
installed.
Drain temperature probe
circuit problem.
When oven power is turned on, there is high voltage present in the electrical components compartment.
Solid state controls may
be out of calibration.
Relay board and/or control
panel operation.
Faulty relay board.
Faulty control panel.
6-18
Corrective Action
Check that harness is correctly and
securely connected to the drain tempera-
ture terminals on the control panel.
Continually check the probe. Disconnect
the probe from the harness. Remove from
the oven and put in an ice water bath.
Check that probe is not touching wall of
drain tube. Reinstall probe if necessary.
Disconnect drain probe harness from the
probe and control panel. Continuity check
harness. Replace harness if an open cir-
cuit is detected.
With probe disconnected from harness,
continuity check harness to ground.
Replace harness if continuity is meas-
ured.
With probe disconnected from the
harness, measure both probe leads to
ground. If continuity is indicated on the
meter, replace the probe.
Continuity check probe wires. If an open
circuit is measured, replace probe.
Check solid state controls calibration.
Check relay board power supply.
Replace relay board.
Replace control panel.
Test Equipment
WARNING
————————
Digital ohmmeter
————————
Digital ohmmeter
Digital ohmmeter
Digital ohmmeter
Digital ohmmeter
WARNING
Calibration box,
P/N 074821
Voltmeter
————————
————————
Service
Reference
Location
Page 8-20
Page 8-3
Page 8-18
Pages 2-21
2-22, 3-32,
3-33, 3-34,
4-19, or 5-19
Pages 2-21
2-22, 3-32,
3-33, 3-34,
4-19, or 5-19
Pages 2-21
2-22, 3-32,
3-33, 3-34,
4-19, or 5-19
Pages 2-21
2-22, 3-32,
3-33, 3-34,
4-19, or 5-19
Page 8-1
Page 8-3
Page 8-24
Page 8-23
(Revised 1/02)