Valeo Thermo E+ 120 - Page 42

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Thermo E+ 120/200/320 5 Troubleshooting
Manual inspection
• Remove burner (see 8.2).
• Unplug the nozzle block preheater connector from the
control device.
• Remove the nozzle block preheater as required.
• Measure the resistance with an ohmmeter on the
wires that come directly from the heating element (one
measuring tip on the plug, another measuring tip on
the thermostat - contact to the heating element).
Limits:
12V Version: 1..3 Ohm
24V Version: 5..8 Ohm
• Install the nozzle block preheater as required.
• Reconnect the nozzle block preheater to the control
device.
ATTENTION:
When connecting, danger of confusion with the
electronic ignition unit (see Fig. 303)!
• Reinstall burner (see 8.2).