问答题

TASK 5
Directions: There are two business letters below. After reading them, you are required to complete the answers that follow the questions, numbered from 56 to 60. You should write your answers(in no more than three words)on the Answer Sheet correspondingly．

Problems	probable cause	Suggested solutions
The display is shouing the sign ":".	There has een a power intereuption
The fan seems to be running siower than usual	The oven has beenstoted in a cold area.	The fan will run slower until the oven warms up to normal room temperature
The display shows a time counting down but the oven is not cooking.	The oven door is not closed completely.	Close the door completely.
	You have set the controls as a kitchen(定时器).	Ttouch OFF/CANCLE to cancel the Minute Timer
The turntable(转盘)will not turn	The support is not operatingcorrectly	Check the turntable support is properly in place ,and restart the oven.
The microwave oven will not run.	The door is not firmly closed.	Close the door firmly
	You did not touch the button "START"	Touch the button "START"
	You did not follow the directions exactly.	Follow the directinos exactly.

What is the cause for the turntable to fail to turn ____________ is not operating correctly．