6-8. When alarm sounds continuously without stop
(related with buzzer sound)
6. Self Diagnosis & Trouble Shooting
To do list
1) If 'ding-dong'sound continuously
Start
Is door closed
completely?
Is water penetrated
into the door switch?
Is the door
switch unit normal?
Door is ajar
YES
YES
NO
Remove causes after compre
hending the conditions of int
erferance by door gasket,
food etc,
Replace Door S/W
NO
YES
Is the connector CN76
inserted correctly?
NO
Replace Door S/W
Connector is not inserted,
Repair disconnect part
YES
Seperate the door switch andcheck
if the measured value of unit is
changed from 0Ω to Ω∞ according to
switch ON/OFF.
* FF Door Switch is magnetic switch.
( It can be operated when door
magnet is combined with it.)
192
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