M1 Oven Control Testing Procedures - Maytag AGS1740BD series Service

Testing Procedures
To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.
Illustration
Convection assembly
Convection motor
Hi-limit temperature
switch
Double thermal valve/
shut off valve
Pressure regulator
Cooling fan motor
Orifice holder
Rocker switch
Power cord 3-wire
M1 (AGS1740BD*, MGS5752BD*) Oven Control Testing Procedures
Control Component
M1 Controlled Oven temperature
adjustment
M1 Controlled Temperature display
M1 Controlled Clock Display
M1 Controlled 24 Hour Clock
M1 Controlled Factory Default
M1 Controlled Twelve hour off
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Component
Measure voltage ........................................
Check motor windings to ground................
Normally closed, verify operation:
Open: 249° to 271°F (121° to 133°C) .......
Closed: 173° to 207°F (78° to 97°C).........
Verify gas supply is turned on at
regulator.....................................................
Disconnect wiring to valve.
Measure bake circuit resistance.................
Measure broil circuit resistance..................
Verify gas pressure (W.C.P.). ....................
If on LP service verify proper gas supply
conversion.
Measure voltage ........................................
Check motor windings to ground................
Verify gas pressure ....................................
Check orifice for debris ..............................
Measure continuity of switch positions:
Closed ....................................................
Open ......................................................
Verify resistance of wires to terminals ........ Continuity.
Press BAKE pad.
Enter 550 on the digit-pad.
Immediately press and hold BAKE pad for 3
seconds.
Oven can be adjusted from -35 to +35 degrees
in 5-degree increments by pressing (Up Arrow)
or (Down Arrow) pads. To avoid over adjusting
the oven, move temperature 5 degrees each
time. Wait 4 seconds for the data entry timer to
expire to accept the change. Temperature
adjustment will be retained even through a
power failure.
Press and hold CANCEL and BAKE pads for 5
seconds. Press (Up Arrow) or (Down Arrow)
pads to change.
Press and hold CANCEL and CLOCK pads for
5 seconds.
Press and hold CANCEL and DELAY pads for 5
seconds. Press (Up Arrow) or (Down Arrow)
pads to change.
Press and hold CANCEL and KEEP WARM
pads for 5 seconds.
Control automatically cancels cooking operation
and removes all relay drives 12 hours after the
last pad touch.
WARNING
Test Procedure
Test Procedure
16026293
Results
120 VAC. (tolerance: 105 to 135 VAC)
No continuity.
RPM: Approx. 900 (tolerance: 700 to
1100 RPM).
Infinite.
Continuity.
Gas is supplied.
Continuity.
Continuity.
5" Natural
10" LP/propane
Gas ON Tab up.
Gas OFF Tab down.
120 VAC.
No continuity.
RPM: 1670 to 2070
5" Natural
10" LP/propane
Clean as needed.
Continuity
Infinite
Results
Increasing or decreasing oven
temperature does not affect self-
cleaning temperature.
This mode enables the user to
indicate °F or °C on the display.
Allows clock to be toggled On or
OFF.
Allows the time on the clock to be
toggled from 12 hour or 24 hour
display.
Allows the clock to be reset to factory
settings.
See Sabbath mode to disable.
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