Testing Procedures - Maytag AER5515QA Series Service Manual

Testing Procedures

To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless
testing requires power.
Illustration
Oven light socket
Coil elements
1500 W−4 turn
2350 W−5 turn
100 W Warming element
1200 W Ribbon radiant
2500 W elements
2700 W
2400/1000 W
2700/1700 W
Ribbon surface
thermal limiter/hot
light switch
Snap Action Infinite
switch
5 L1
3
L2
4 H2
P
2
1
H1
Dual Infinite switch
TOP
P L1 L2
H1
H2
Infinite switch, low
5 L1
3 heat
L2
4 H2
P
2
1
H1
Convection motor fan
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Component
Remove one wire from receptacle and
test resistance of terminals ..................
Measure voltage at oven light ..............
Remove element and measure
resistance across terminals.
Remove one wire lead from element
and measure resistance of the
element.
Remove one wire lead from element
and measure resistance of the
element.
Dual element
Dual element
Disconnect leads and measure
resistance on the following:
−
1a 2a room temperature
−
1b 2b room temperature
Turn surface element on and test for
voltage. See wiring diagram and
schematic.
−
1a 2a 240 VAC
−
1b 2b 120 VAC
Connect Volt-ohms meter to
H1 and H2.
Measure the following for voltages at
LO, MED, HI:
H1 to H2
Connect Volt-ohms meter to
H1 and H2.
Measure the following for voltages at
LO, MED, HI:
H1 to H2
Connect Volt-ohms meter to
H1 and H2.
Measure the following for voltages at
LO, MED, HI:
H1 to H2
Verify supply voltage........................
Measure continuity at the following
points:
Terminal to terminal .........................
Terminal to ground...........................
WARNING
Test Procedure
−
1000 + 1400 = 2400 W
−
1700 + 1000 = 2700 W
−
continuity
−
infinite
16025644
Results
Indicates continuity with bulb screwed in.
120 VAC, see wiring diagram for terminal
identification.
If no voltage is present at oven light,
check wiring or light switches.
Continuity, if not replace.
Ω Approximately
1500W: 35 to 39
Ω Approximately
2350W: 22 to 25
Continuity, if not replace.
6" − 100W: 132.8 to 146.9
Ω
Approximately
Continuity, if not replace.
Ω Approximately
1200W: 44 to 49
Ω Approximately
2500W: 21 to 24
Ω Approximately
2700W: 20 to 22
Ω Approximately inner
2400W: 53 to 59
Ω Approximately outer
38 to 42
Ω Approximately inner
2700W: 31to 34
Ω Approximately outer
53 to 59
240 VAC
Electrovac
Therm-O-Disc (TOD)
2b
2b 2a
Hot light Heater
circuit
circuit
2a
1b 1a
Approximate
Time On Time Off
LO 5% 95%
MED (4-5) 35% 65%
HI 100% 0%
240 VAC, if not replace switch.
Approximate
Time On Time Off
LO 8% 92%
MED (4-5) 35% 65%
HI 100% 0%
240 VAC, if not replace switch.
Approximate
Time On Time Off
LO 3% 97%
MED (4-5) 35% 65%
HI 100% 0%
240 VAC, if not replace switch.
120 VAC
Continuity
Infinite
1b
Hot light
circuit
Heater
1a
circuit
11