Groen CC20-E Operator's Manual page 217

SERVICE CODES
Service Code 8
Table 8 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 8 - Troubleshooting Service Code 8
Probable Cause
Be sure oven is disconnected from branch circuit power before performing any repair work.
Unknown at this time.
Boiler has drained and
Service Code 8 is
displayed.
Boiler has not drained
and Service Code 8 is
displayed.
When oven power is turned on, there is high voltage present in the electrical components compartment.
Drain valve may not be
operating properly.
Relay board and/or
control panel problem.
6-24
Corrective Action
Turn oven power off and allow 5 minutes
for the boiler to drain.
Troubleshoot Service Codes 1 and 2.
Check that drain line is not directly
connected to the building drain. Be sure
there is a 2" free air gap. Refer to the
three building drain diagrams on pages
2-1, 3-1, 4-1 o r 5-1.
Check that the boiler is clean. Clean
boiler if necessary.
Check cavity drain and 1/2" boiler drain
hose for blockage. Clean if necessary. If
blockage cannot be removed from drain
hose, replace the hose.
Turn off oven power and try to open the
valve manually. Valve cannot be opened
manually. Replace the drain valve.
Operate oven and select Oven mode.
Measure voltage between K15 contacts. If
zero volts are measured, contacts are
closed and relay is defective. Replace the
relay board.
Perform relay board power supply check.
Test Equipment
WARNING
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WARNING
Voltmeter
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Voltmeter
Service
Reference
Location
————
Pages
6-6 and
6-8
Pages
2-1, 3-1,
4-1, or 5-1
Pages
8-65, 8-66
or 8-67
Page 8-29
Page 8-29
Page 8-21
Page 8-3
(Revised 1/02)