R-24ST/R-2B34 - 15
PROCEDURE
LETTER
COMPONENT TEST
CARRY OUT 3D CHECKS
1. If the fuse F1is blown, there could be shorts or grounds in electrical parts or wire harness. Check them
and replace the defective parts or repair the wire harness.
CAUTION: Only replace special fuse F1 with the correct value replacement.
CARRY OUT 3D CHECKS
Disconnect the leads from the terminals of the thermal cut-out. Then using an ohmmeter, make a
continuity test across the two terminals as described in the below.
CARRY OUT 4R CHECKS
Temperature of "ON" condition (closed circuit) ................................................................................. This is not resetable type
Temperature of "OFF" condition (open circuit) .................................................................................................... Above 125
°
C
Indication of ohmmeter (When room temperature is approx. 20
°
C.) ................................................................... Closed circuit
If incorrect readings are obtained replace the thermal cut-out.
An open circuit thermal cut-out (OVEN) indicates that the foods in the oven may have caught fire, this
may be due to over heating produced by improper setting of the cooking timer or failure of the control
panel.
BLOWN FUSE F1
G
H
NOISE FILTER TEST
CARRY OUT 3D CHECKS
Disconnect the leads from the terminals of
the noise filter.
Using an ohmmeter, check between the ter-
minals as described in the following table.
MEASURING POINTS
INDICATION OF OHMMETER
Between N and L
Open circuit
Between terminal N and WHITE
Short circuit
Between terminal L and RED
Short circuit
Rx
±
5%
L(min)
Cx
±
20%
Cy
±
20%
Ry
±
5%
680k
Ω
1.0mH
0.22
µ
F
0.0033
µ
F
10M
Ω
If incorrect readings are obtained, replace the noise filter unit.
CARRY OUT 4R CHECKS
F
THERMAL CUT OUT TEST
TEST PROCEDURES
Cx
Cy
Rx
Ry
Cy
L
L
RED
WHT
F8A
L
N
Cx
Rx