Sanyo MCO-18AIC Service Manual page 16

E18 : UV lamp malfunction (UV lamp is optionally provided)
When the time to turn the UV lamp on (F01) is set, the microcomputer checks the
output voltage in UV detect circuit, that is detected 30seconds after the door was
opened
malfunction. "E18" and "internal temperature " are displayed alternately, at the time
the buzzer sounds intermittently. Press BZ key to cancel the error.
High temperature alarm:
When the internal temperature is out of SV, OVERHEAT lamp illuminates
displaying "PV" with "E12" (main heater malfunction) or "E16" (SSR for each
heater is open circuit) alternately. The buzzer sounds intermittently. It is impossible
to stop the buzzer sounding by BUZZER key.
At the time heaters (main heater, bottom heater and door heater) will be OFF.
Automatic temperature alarm
When the internal temperature is 1.0 C out of SV, all digits in temperature display
blink and intermittent buzzer sounds with 15minutes delay.
Automatic CO level alarm
2
When the internal CO
intermittent buzzer sounds with 15 minutes delay.
CO Auto Zero adjustment calibration:
2
See details in "Auto Zero adjustment", Page 26.
6. Key lock function
Lock mode
Note)
7. Door alarm
Display
Safety
operation :
8. Auto return
Function
9. Calibration
Temperature
calibration
shut. If the detected voltage is 0.2V or lower, it is judged as UV lamp
level is 1.0% out of SV, all digits in CO
2
: In PV display, keep pressing
key lock mode, display will change to "L0".
Press key to set 1 ......... Key lock ON
Press key to set 0 ......... Key lock OFF
Press SET to memorize the set, then automatically returns to PV
display.
In Key Lock ON, the device can enter into SET mode to check SV,
however, the value cannot be changed. The device also cannot enter
into Function mode.
: When the door is opened, DOOR lamp illuminates.
When the door is closed, DOOR lamp goes off.
When the door is opened, fan motor turns off, CO
(UV lamp turns off if it is optionally fitted).
If the door left opened for 60seconds, the heater turns off.
: In setting mode, Key Lock mode and Function mode, if any key is not
operated for 90 seconds or more, the display automatically returns to PV
without storing the value to be changed.
In PV display, press CAL key for approx. 5seconds to enter the device
: into temperature calibration mode.
Input a proper value with
store the value. Finally the device returns to PV display.
key (shift key) over 5 seconds to enter
key and
13
display blink and
2
valve shuts off,
2
key then press ENT key to