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Description of all Functions
FAULT DURING THE HEATING STAGE
Does it
heat up?
Check the voltage
in the resistance.
Yes
No
Put the thermometer and ammeter in place.
Select the 65ºC heating program.
Start the program.
Voltage?
Check the card’s output volta-
ge.
Connectors J2 Pin 8, and J1
Pin 1.
No
Yes
Card O.K. Faulty
resistance. Check by
measuring continuity.
No
Voltage?
Yes
Installation
interrupted – connection cut
Faulty card
Observe water
temperature
(thermometer)
Does the temperature
reach the safety temp of
approx. 85ºC, the power
to the resistance is then
shut off, and after 10 mi-
nutes produces error F6?
Safety thermostat detects maximum
security limit “Safety thermostat O.K.”
The resistance has dis-
connected itself before
reaching the assigned or
selected temperature.
Current to the resistance
cut off and produces error
F6 after 10 minutes?
Faulty safety thermostat.
Check the NTC 24ºC
approx. 5.3 K Ohms.
NTC OK?
Faulty thermostat
(relay).
Replace the
NTC.
Warning:
if the NTC is
short-circuited or open,
it has its own error code
(F7).
Yes
No
Yes
Yes
No
NTC
Safety thermostal
!