Amana 1800 W - 2005 Manual page 13

Troubleshooting Procedures (Electronic Models)
Trouble 2: Oven does not operate at all, display window does not display any digits, and
no input is accepted.
Fuse blows.
Disconnect one side of
the wire lead connecting
transformer to high
voltage capacitor and
operate the unit.
Normal
Fuse does not
blow.
Continuity
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Check continuity
of monitor switch
with door closed.
Replace fuse
Check continuity
of primary switch
with door opened.
Check continuity
of secondary
switch with door
opened.
Measure
resistance of high
voltage capacitor.
Check continuity
of thermostat
(cavity and
magnetron).
Check continuity
of power cord.
Malfunction
Continuity
of the
monitor
switch.
No
Continuity
Continuity
Malfunction of
primary switch.
No
Continuity
Malfunction of
Continuity
secondary
switch.
No
Continuity
Fuse blows
again.
Abnormal
Normal
No
Failed
Continuity
thermostat.
No
Failed power
Continuity
cord.
16026795
Replace the fuse,
primary,
secondary, monitor
switches and
controller.
Replace the fuse,
primary,
secondary, monitor
switches and
controller.
Replace the fuse,
primary,
secondary, monitor
switches and
controller.
Failed high
Replace high
voltage
voltage
transformer.
transformer.
Failed high
Replace high
voltage
voltage
capacitor.
capacitor.
Capacitor is good,
(replace fuse only).
Replace
thermostat.
power cord.
Replace
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