Troubleshooting Procedures - Groen CC20-E Operator's Manual

Probable Cause
Relay board or control panel not
operating properly.
Probable Cause
Oven disconnected from power source.
Improper input power connection(s).
Blown fuse(s) in oven.
Fuses continue to blow.
Air or boiler high limit
temperature thermostat problem.
(Revised 1/02)
After determining the problem condition, proceed through the Probable Causes
and corresponding Corrective Actions in the order shown in the troubleshooting
table. If a Probable Cause is not the reason for the fault condition, proceed to
the next Probable Cause and Corrective action. Continue through the Probable
Causes until the problem is corrected.
Perform power supply checks. See page 8-3.
Make sure disconnect device is turned on. If necessary,
reset power source circuit breaker. If disconnect device has
a blown fuse, ask the customer to make arrangements to
replace the fuse.
Refer to schematic diagrams and check for correct power
connection. If necessary, notify the customer that an elec-
trician is needed to correct the problem.
Check all fuses and replace blown fuse(s).
Refer to the schematic diagram (pages 2-17, 3-33, 3-34,
4-19 or 5-19) and continuity check for electrical short
circuits.
Test thermostats. See page 8-4.
TROUBLESHOOTING

Troubleshooting Procedures

PROBLEM: NO SERVICE CODE DISPLAYED
Corrective Action
PROBLEM: UNIT WILL NOT TURN ON
Corrective Action
WARNING
Be sure oven is disconnected from branch cir-
cuit power before performing any repair work.
7-3