Troubleshooting - Commercial CHEF CHM990B Manuel D'utilisateur

TROUBLESHOOTING & WARRANTY

TROUBLESHOOTING

Troubleshoot your problem by using the chart below. If the microwave oven still
does not work properly, contact W Appliance Co. customer service center or the
nearest authorized service center. Customers must never troubleshoot internal
components. Microwaves hold dangerous voltage (5000V) even after power is
removed. Only a certified technician should attempt Microwave repair.
TROUBLE
Oven will not start
Arcing or sparkling
Unevenly cooked foods
Overcooked foods
Under cooked foods
Improper defrosting
POSSIBLE CAUSE
A. Electrical cord for oven is
not plugged in.
B. Door is open.
C. Wrong operation is set.
A. Materials to be avoided
in microwave oven , such as
metal, were used.
B. The oven is operated when
empty.
C. Spilled food remains in the
cavity.
A. Materials to be avoided in
microwave oven were used.
B. Food is not defrosted
completely.
C. Cooking time, power level
is not suitable.
D. Food is not turned or
stirred.
Cooking time, power level is not
suitable.
A. Materials to be avoided in
microwave oven were used.
B. Food is not defrosted
completely.
C. Oven ventilation ports are
restricted.
D. Cooking time, power level
is not suitable.
A. Materials to be avoided in
microwave oven were used.
B. Cooking time, power level
is not suitable.
C. Food is not turned or stirred.
POSSIBLE REMEDY
A. Plug into the outlet.
B. Close the door and try again.
C. Check instructions.
A. Use microwave-safe
cookware only.
B. Do not operate with oven
empty.
C. Clean cavity with wet towel.
A. Use microwave-safe
cookware only.
B. Completely defrost food.
C. Use correct cooking time,
power level.
D. Turn or stir food.
Use correct cooking time and
power level.
A. Use microwave-safe
cookware only.
B. Completely defrost food.
C. Check to see that oven
ventilation ports are not
restricted.
D. Use correct cooking time
and power level.
A. Use microwave-safe
cookware only.
B. Use correct cooking time
and power level.
C. Turn or stir food.
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