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Description of all Functions
NTC fault
NTC FAULT
LUX
ECO - STANDARD
F7
7 BEEPS
X
X
X
X
X
X
7 BEEPS
When the NTC is short-circuited or open, the machine will stop, and beep as
follows:
7 beeps
pause 4”
7 beeps
pause 4”………and so on.
This means error code F7.
Unlike other error codes, which allow the program to be restarted, in this case the
error code will be continuously beeped, and will not allow the program to be restarted,
so once this error code appears, if the machine is reset, turning off with the main ON/
OFF switch, the error will automatically appear again, so no operation may be carried
out with the machine.
NTC FAULT
Check for continuity in the NTC, with
wires disconnected. The approx. re-
sistance at 24º should be 5.3 Ohms.
OK?
Installation fault. (Cable
cut/broken)
Problem
solved
Yes
No
NTC
NTC short-or
open-circuited.
Replace the NTC.
NTC Correct. Check the resistance in
the card. Connector J3 pins 7 and 8.
OK?
Yes
No
Check the connector’s contact with
the card tracks and test.
OK?
Yes
No
Faulty card