(Revised 1/02)
TROUBLESHOOTING
7-14
PROBLEM: OVEN DOES NOT ACHIEVE READY STATUS - (Continued)
Probable Cause
Corrective Action
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
.
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 24V
AC 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.
WARNING
Be sure oven is disconnected from branch cir-
cuit power before performing any repair work.
1
15VAC 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.
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