Immergas Zeus Superior - Error Code Diagnostics

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STZSkW ed 12/07 ZEUS Superior kW
Technical DocumentationTechnical Documentation
ERROR 01
Ignition block
01
a
e ignition transformer carries out the discharge.
No
Replace the circuit board.
Yes
e wiring between ignition electrodes and circuit board is OK.
No
Restore/replace ignition electrodes and relative cables.
01
b
230 VAC are present on clamps 1-2 of connector X7.
No
Replace the circuit board.
Yes
e connector and relative wiring between the gas valve and the
circuit board are OK.
No
Restore the electric connection/replace the wiring.
Yes
e gas valve main coils are OK.
No
Where possible, replace the gas valve main coils.
Yes
Replace the gas valve.
N.B.: before replacing the valve always check that there is sucient dynamic pressure in gas input and that the adjustment screws of the minimum heat
output and maximum heat ouput are correctly adjusted.
01
c
e electrode detects a direct current of 6-8 μA during the burner
ignition phase.
No
Replace detection electrodes and/or relative wiring.
Yes
Replace the P.C.B.
ERROR 02
Over-temperature safety thermostat block
02
a
e wiring between safety thermostat and circuit board is OK.
No
Restore the electric connection/replace the wiring.
Yes
Check/replace the safety thermostat. If the anomaly should persist replace the circuit board.
02
b
e circulation pump operates correctly.
N.B.: make sure that the pump operates at maximum speed
No
See section B
Yes
Any heating system zone valves or intercepting valves are open.
No
Restore circulation in the heating system by acting on the closed devices
and also check:
- the correct positioning/functioning of the boiler by-pass;
- opening times of zone valves (on requirement it is possible to delay
ignition of the burner by acting on the "P68" parameter of the boiler);
- the correct functioning of the thermostatic valves.
Yes
e NTC ow probe is OK (10 kΩ at 25°C).
No
Replace the NTC probe.
Yes
Check/clean/replace the main heat exchanger.
ERROR 03
Fan anomaly
03
a
At least 140 VAC are present on clamps 1-2 of connector X16 on
the circuit board.
N.B.: in order to have a reliable measurement the signal must be
read for at least one minute.
To be OK the voltage can be measured for only a few seconds.
No
Replace the circuit board.
Yes
At least 140 VAC are present on the fan clamps.
N.B.: in order to have a reliable measurement the signal must be
read for at least one minute.
To be OK the voltage can be measured for only a few seconds.
No
Restore the electric connection/replace the wiring.
Yes
Replace the fan.
Error codes.