New Function [ Indoor Terminal Block Safety Device ] - Samsung AR09KSWSPWKNCV Service Manual

New Function [ Indoor Terminal Block Safety Device ]

1. Thermal Fuse is installed in Terminal Block as below.
(Thermal Fuse is used to prevent PL caused by a defective connection of indoor and outdoor units)
Thermal Fuse
2. Thermal Fuse is opened when internal temperature of Terminal Block goes to a certain point due to Tracking caused by
a defective connection of indoor and outdoor units.
- When Thermal Fuse is opened, Main PBA (DC12V) is turned off and the indoor unit does not operate.
(There is no problem with Main PBA in this case)
- In the above case, the change of all-in-one Terminal Block will make Main PBA operate again.
3. Measurement method of fair/defective thermal fuse
10-
Terminal Block Internals
Fail
Connection of terminal block
and Main PBA
Circuit Block
Defective
Samsung Electronics