Panasonic NE-3280 Service Manual page 26

NE-3280 / NE-3240 / NE-2180 / NE-2140
DISPLAY
F34 Short temperature
sensor (exhaust)
F44
F01 Exhaust temperature
(With continuous exceeds 120°C
beep sounds)
F03 Input voltage exceed +
12.5%
F04 Input voltage is less
than — 12.5%
F05 Memory failure
No display 1.25/3A fuse blown
No display 1.25/3A fuse is OK
F81 No voltage supply to
high voltage trans.
(lower/left)
F82 No voltage supply to
high voltage trans.
(lower/right)
F83 No voltage supply to
high voltage trans.
(upper/left)
F84 No voltage supply to
high voltage trans.
(upper/right)
F86 Shorted contacts of RY-
3
F87 Shorted contacts of RY-
5
F88 Shorted contacts of RY-
7
F89 Shorted contacts of RY-
9
[TROUBLE]Oven does not operate at all or oven does not start cooking. NE-2180, NE-2140
DISPLAY
F33 Open temperature
sensor (exhaust)
F34 Short temperature
sensor (exhaust)
F44
F01 Exhaust temperature
(With continuous exceeds 120°C
beep sounds)
F03 Input voltage exceed +
12.5%
F04 Input voltage is less
than — 12.5%
F05 Memory failure
No display 1.25/3A fuse blown
CONDITIONS
1. Temperature sensor failure
2. Digital programmer circuit failure
1. Shorted power select switch
2. Shorted membrane switch
1. Burning food in the oven due to over cook
1. Increase in power source voltage
1. Decrease in power source voltage
1. Digital programmer circuit failure
1. Switch failure (short switch)
2. Low-Voltage transformer failure
1. Thermal cutout failure
2. Low voltage transformer failure
3. Digital programmer circuit failure
1. Relay failure RY-3 (A)
2. Loose connector CN256, CN257
3. Digital programmer circuit failure
1. Relay failure RY-5 (B)
2. Loose connector CN258, CN259
3. Digital programmer circuit failure
1. Relay failure RY-7 (C)
Loose connector CN260, CN261
2. Digital programmer circuit failure
1. Relay failure RY-9 (C)
Loose connector CN262, CN263
2. Digital programmer circuit failure
1. Replay failure RY-3 (A)
2. Digital programmer circuit failure
1. Replay failure RY-5 (B)
2. Digital programmer circuit failure
1. Replay failure RY-7 (C)
2. Digital programmer circuit failure
1. Replay failure RY-9 (D)
2. Digital programmer circuit failure
CONDITIONS
1. Temperature sensor failure
2. Digital programmer circuit failure
3. Loose connector CN5
1. Temperature sensor failure
2. Digital programmer circuit failure
1. Shorted power select switch
2. Shorted membrane switch
1. Burning food in the oven due to over cook
1. Increase in power source voltage
1. Decrease in power source voltage
1. Digital programmer circuit failure
1. Switch failure (short switch)
2. Low-Voltage transformer failure
POSSIBLE CAUSE
POSSIBLE CAUSE
26
TIMING OF FAILURE INDICATION
It is appeared when failure occurred.
It is appeared 2 minutes after failure
occurred.
It is appeared when exhaust temperature
exceeds above 120°C.
It is appeared when the unit is plugged in.
Note that it returns normal operation mode
by tapping the RESET pad ( ).
It is appeared when the unit is plugged in.
Note that it returns normal operation mode
by tapping the RESET pad ( ).
It is appeared when failure occurred.
It is appeared when failure occurred.
It is appeared when failure occurred.
It is appeared when failure occurred.
It is appeared when failure occurred.
It is appeared when failure occurred.
It is appeared when failure occurred.
It is appeared when failure occurred.
TIMING OF FAILURE INDICATION
It is appeared when failure occurred.
It is appeared when failure occurred.
It is appeared 2 minutes after failure
occurred.
It is appeared when exhaust temperature
exceeds above 120°C.
It is appeared when the unit is plugged in.
Note that it returns normal operation mode
by tapping the RESET pad ( ).
It is appeared when the unit is plugged in.
Note that it returns normal operation mode
by tapping the RESET pad ( ).