Daewoo KOC-970T1S, Service Manual

Page: 27 / 48

MEASUREMENT AND TEST
2. ELECTRICAL CONTINUITY CHECK OF INTERLOCK SWITCH
PROCEDURE
1. Primary interlock switch
(1) Disconnect two connectors from primary interlock switch.
(2) Connect the ohm-meter leads between the terminals of the primary interlock switch.
2. Read the value of resistance between the terminals of the switch, when the door is opened, and when the door is closed.
3. Secondary interlock switch
(1) Disconnect two connectors from secondary interlock switch.
(2) Connect the ohm-meter leads between the terminals of the secondary interlock switch.
(3) Read the value of resistance between the terminals of the switch, when the door is opened,
and when the door is closed.
3. Monitor interlock switch
(1) Disconnect the lead wire connecting the primary interlock switch and interlock monitor switch from
primary interlock switch terminal.
(2) Connect the ohm-meter leads between the lead wire connector disconnected as item1 and
the power supply neutral plug pin.
(3) Read the value of resistance between the lead wire connector and the power supply neutral plug pin,
when the oven door is opened, and when the oven door is closed.
JUDGEMENT
•
The value of resistance should be applied to the value specified below.
•
When value obtained is not acceptable, the switch should be replaced or adjusted again.
Switch Door Open Door Close
Prim ary interlock sw itch 0
Secondary interlock sw itch 0
Interlock m onitor circuit 0
R em ove the pow er plug from the w all receptacle before testing.
NOTE