Sanyo MDF-192, Service Manual

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17
10. Sensor error
(1) Temp. sensor
Open circuit:
E01 and 50 㷄 are displayed alternately, the buzzer beeps intermittently
and remote alarm contact outputs.
The compressor would be allowed to turn on.
Press BUZZER key to stop the buzzer beeping.
Short circuit:
E02 and -170
㷄
are displayed alternately, the buzzer beeps
intermittently and remote alarm contact outputs.
The compressor would be allowed to turn on.
Press BUZZER key to stop the buzzer beeping.
(2) Comp. protect sensor
Open circuit: E05 and chamber temperature are displayed alternately, the buzzer
beeps intermittently and remote alarm contact outputs.
Press BUZZER key to stop the buzzer beeping.
Short circuit: E06 and chamber temperature are displayed alternately, the buzzer
beeps intermittently and remote alarm contact outputs.
Press BUZZER key to stop the buzzer beeping.
(4) Error code priority
No.1: Temp. sensor (E01 or E02)
No.2: Comp. protect sensor (E05 or E06)
No.3: Condensing fan motor locked (E15)
(5) Temperature to judge failure
Temp. sensor:
50.0
㷄
or higher with E01 displayed (open circuit)
-170
㷄
or lower with E02 displayed (short circuit)
Comp. protect
sensor:
-50
㷄
or lower with E05 displayed (open circuit)
70 㷄 or higher with E06 displayed (short circuit)
60 㷄 or higher with E15 displayed (fan motor locked)
40
㷄
or lower with E15 goes off
11. Timer operation
Compressor should stop operation for about 8 minutes with every 12 hours.
12. Operation when the power is supplied
Compressor should start operation with 2 minutes of delay since the power was supplied.
13. Lamp and buzzer
(1) Control PCB
DP1: Green lamp
Goes off: Compressor turns off. (normal condition)
Lit : Compressor turns on.
DP3: Yellow lamp
Goes off all the time
(2) Display
DP102: Red lamp
Goes off: Not in alarm condition (normal condition)
Blinks : High temp. alarm (without delay), or sensor error, or power
Failure, door ajar
(3) Buzzer
High temp. alarm: Intermittent tone with 12minutes of delay
Sensor error: Intermittent tone when EXX (XX=01~06) is displayed
Power failure: Intermittent tone
Key quick: Short tone if key quick is available
Out of input range: 1 second continuous tone