Groen CC20-E Operator's Manual page 235

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TROUBLESHOOTING
PROBLEM: OVEN DOES NOT ACHIEVE READY STATUS - (Continued)
Probable Cause
Zero current in any water heating
element circuit. (Continued)
Relay on relay board may not be
operating properly.
Relay board and/or control panel
not operating properly.
Gas Ovens
Low boiler valve SV3 and/or high
boiler valve SV4 not operating properly.
7-14
Corrective Action
24VAC measured. Coil is open, replace faulty mercury
relay, P/N:
R1 -
077848
R2, R3, R11, R12 -
077834
R4 -
077849
24VAC not measured. Proceed to next probable cause.
Check for 24VAC between relay contacts on relay board,
for relay that is connected to the mercury relay in ques-
tion.
24VAC measured. Perform relay check. See page 8-3.
Perform relay board power supply check.
See page 8-3.
Check for 115VAC at SV3 and SV4.
Be sure oven is disconnected from branch cir-
cuit power before performing any repair work.
115VAC measured. Check SV3 and SV4 coil continuity.
Continuity measured. Check boiler burner orifices for
blockage. Clean or replace if necessary.
Open circuit measured. Replace boiler valve SV3 and/or
SV4.
WARNING
(Revised 1/02)

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