Fuses; Cavity Tco; Magnetron Tco; Interlocks And Monitor - GE SCA1000 Technical Service Manual
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Also See for SCA1000:
- Owner's manual (48 pages) ,
- Installation instructions manual (48 pages) ,
- Installation instructions manual (48 pages)
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Thermal compensation occurs only once, at the
beginning of a Speedcook cycle. In the following
thermal compensation table, the first column lists
the initial cavity temperature, the second and third
columns list the number of minutes and seconds
the unit will have thermal compensation active.
T
h
r e
m
l a
C
o
m
n I
t i
l a i
C
v a
y t i
C
o
m
p
e T
m
p
e
a r
u t
e r
i T
m
e
1
5
° 0
F
1
7
° 5
F
2
0
° 0
F
2
2
° 5
F
2
5
° 0
F
2
7
° 5
F
3
0
° 0
F
3
2
° 5
F
3
5
° 0
F
3
7
° 5
F
4
0
° 0
F
4
2
° 5
F
4
5
° 0
F
Fuses
The unit is equipped with two fuses. The 20-amp
fuse located near the magnetron fan is common to
all functions and the door switches. If this fuse
blows (open), no functions will operate, including
the display.
The 12-amp fuse is located on the sub PCB. This
fuse prevents the sheath heater from operating at
the same time that the speedcook heaters
(ceramic and halogen) are operating in the event
of a stuck-closed relay. The 12-amp fuse also
provides protection in the event of a heater failure
or a short to ground in a heater circuit.
p
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t a
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C
h
a
t r
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n
s
t a
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n
C
o
m
p
e
n
s
t a
M
n i
u
e t
s
i T
m
e
S
e
c
o
2
7
2
3
3
3
0
3
2
7
3
5
3
4
2
0
4
4
7
5
1
3
5
4
0
6
7
6
3
3
7
0
7
2
7
Cavity TCO
The cavity TCO is mounted on the side of the
damper duct. This position allows the TCO to
sense the temperature of the air escaping from the
oven. If an excessive temperature is measured,
the TCO will open, shutting the unit down. The
cavity TCO is a one shot type and is not resetable.
The TCO is secured to the damper duct with a
small screw and retainer.
o i
n
Magnetron TCO
n
d
s
The magnetron TCO is mounted on the side of the
magnetron. This position allows the TCO to sense
the temperature of the magnetron. If magnetron
temperature becomes excessive, the TCO will
open, temporarily shutting the unit down. The TCO
is secured to the damper duct with a small screw
and retainer.
Interlocks and Monitor
The Primary Interlock, Interlock Monitor, and Door
Sensing switches are mounted to a plastic latch
board on the right side of the cavity. From top to
bottom, the switches are as follows:
• Primary Interlock
• Interlock Monitor
• Door Sensing (Secondary Interlock)
MOUNTING
SCREWS
MONITOR
LEVER
– 10 –
PRIMARY
INTERLOCK
INTERLOCK
MONITOR
DOOR
SENSING
(SECONDARY
INTERLOCK)
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