Tsann Kuen Enterprise Co. Ltd. TSK840XE User Manual

MICROWAVE OVEN   

19 

pass through the viewing 

screen in the door? 

holes (or ports) allow only light to pass though. They do not let 

microwave energy pass though. 

Why does a tone sound 

when a pad on the control 

panel is touched? 

The tone tells you that the setting has been entered. 

Can my microwave oven 

be damaged if food is 

cooked for too long? 

Like any other cooking appliance, it is possible to overcook food to 

the point that the food creates smoke and even possibly fire, and 

damage to the inside of the oven. It is always best to be near the oven 

while you are cooking. 

When the oven is plugged 

into wall outlet for the first 

time, it might not work 

properly. What is wrong? 

The microcomputer controlling your oven may temporarily become 

scrambled and fail to function as programmed when you plug in for 

the first time or when power resumes after a power interruption. 

Unplug the oven from the 120 volt household outlet and then plug it 

back in to reset the microcomputer. 

Why do I see reflection 

around the outlet case? 

The light is from the oven light which is located between the oven 

cavity and the outer wall of the oven. 

What are the various 

sounds I hear when the 

microwave oven is 

operating? 

The clicking sound is caused by a mechanical switch turning the 

microwave oven’s magnetron ON and OFF. 

The heavy hum and clunk is from the change in power the magnetron 

draws as it is turned ON and OFF by a mechanical switch. The change 

in blower speed is from the change in line voltage caused by the 

magnetron being turned ON and OFF. 

 

What is wrong when baked foods 

have a hard, dry, brown spot? 

A hard, dry, brown spot indicates overcooking. Shorten the 

cooking or reheating time. 

Why do eggs sometimes pop? 

When baking, frying, or poaching eggs, the yolk may pop 

due to steam build-up inside the yolk membrane. To 

prevent this, simply pierce the yolk with a wooden 

toothpick before cooking.   

CAUTION: Never microwave eggs in the shell.   

Why are scrambled eggs sometimes a 

little dry after cooking? 

Eggs will dry out when they are overcooked, even if the 

same recipe is used each time. The cooking time may need 

to be varied for one of these reasons: 

•Eggs vary in size. 

•Eggs are at room temperature one time and at refrigerator 

temperature another time.