Groen CC20-E Operator's Manual page 215

SERVICE CODES
Service Code 7
Table 7 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 7 - Troubleshooting Service Code 7 – For ovens prior to GC7243MS and C7439MS.
Probable Cause
When oven power is turned on, there is high voltage present in the electrical components compartment.
Solid state controls
require calibration.
Relay board and/or
control panel
operation.
Be sure oven is disconnected from branch circuit power before performing any repair work.
Faulty relay board.
Faulty control panel.
Be sure oven is disconnected from branch circuit power before performing any repair work.
Broken lead in water
level probe harness.
Contaminated water level
probe.
Defective water
level probe.
High Water Pressure.
(Greater than 60 psi)
Oven shuts down after
15 minutes of steaming.
When oven power is turned on, there is high voltage present in the electrical components compartment.
Relay board and/or
control panel.
Faulty relay board.
6-22
Corrective Action
Check solid state controls calibration.
Perform relay board power supply
check.
Replace relay board.
Replace control panel.
For units after GC7243MS and C7439MS
Continuity check harness. Replace water
level probe harness if an open circuit is
detected.
Clean probe using a fine emery cloth.
Clean probe holder. Clean holder
air vent hole for CC10-E unit.
Delime boiler.
Replace water level probe.
Install a water pressure reducing valve.
Install latest version of the software.
Perform relay board power supply check.
Replace relay board.
Test Equipment
WARNING
Calibration box,
P/N 074821
Voltmeter
WARNING
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WARNING
Digital ohmmeter
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WARNING
Voltmeter
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Service
Reference
Location
Page 8-1
Page 8-3
Page 8-22
Page 8-21
————
————
Page 8-12,
Page 8-62,
8-63, or 8-64
Page 8-12
Page 8-3
Page 8-22
(Revised 1/02)