Viking VGDO271, Сервисный журнал, Страница: 18 / 52

T EST PROCEDURES
To avoid the risk of electrical shock, personal injury or death, disconnect power
before servicing, unless testing requires it.
Problem Probable Cause Correction
1. No oven operation in bake or A. No voltage to ERC A. Check for 120 VAC at ERC
.
broil. If no voltage is present, check
for broken or loose wiring.
2. No gas flows to burner, Ignitor A. Failed ignitor A. Check ignitor current draw.
glows red. Replace ignitor if it fails test.
B. Gas pressure too high B. Check for correct gas pressure.
Natural gas pressure should be
5" WCP and LP gas pressure
should be 10" WPC.
C. Failed gas valve C. Check gas valve for continuity.
3. Gas flows to bake/broil A. Ignitor positioned too far from A. Reposition ignitor closer to
burner, but does not light. burner. Bake/broil burner.
B. Dirt or grease in orifice or B. Clean orifice or burner.
burner.
C. Insufficient gas pressure. C. Check for correct gas pressure.
Natural gas pressure should be
5" WCP and LP gas pressure
should be 10" WCP.
4. Broil burner shuts off shortly A. Sail switch contacts not closing. A. Check both sail switch contacts
after the start of self-clean for continuity.
operation. Bake and broil
functions operate normally.
5. Fan motor does not operate. A. No power to fan motor. A. Check for 120 VAC supplied
at fan motor. If no voltage is
present, check for broken or
loose wiring between fan motor
and relay board. If voltage is
present at fan motor, go to
next step.
B. Failed fan motor or winding B. Check motor winding for
or frozen shaft. continuity. Check for a
frozen motor shaft. Check
for broken wiring between
motor and neutral terminal
block.
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