WARNING: HIGH VOLTAGE !!!
Before replacing the ignition tip or opening the ignition unit, it is imperative to switch off the
power supply and secure it against switching back on again, in order to prevent inadvertent
ignition.
Maintenance
Please carefully read the safety instructions on page 4 before undertaking any maintenance work.
In principle, the high-energy ignition system is maintenance-free, but inspections should be carried
out at regular intervals to check for dirt and structural integrity (e.g. possible damage to the metal
protection sleeve). The high-energy ignition tip can be cleaned with a wire brush.
The service life of the ignition tip is reached at around 400,000 ignitions and can be less if the
equipment is not used according to the specifications.
Troubleshooting
Operation of the high-energy ignition unit includes charging capacitors to a voltage of up to 2000 V
DC. This voltage can still be stored after switching of the power supply. The capacitors are dis-
charged within 120 seconds by means of discharge resistors. Only after this may the lid of the high-
energy ignition unit be opened.
Please observe the safety instructions on page 4.
In principle, the ignition system should not be repaired on site. If a malfunction of the ignition sys-
tem is detected, the fault can be localized as follows:
1. Verifying the supply voltage
When driving the ignition unit, alternating voltage between terminals L and N (see page 15,
image 6 for the position), and between L and PE should be applied. No voltage should be
measurable between N and PE.
2. Verifying the ignition unit with regards to overheating
When the temperature rises above 120° C, the power supply to the ignition transformer is auto-
matically interrupted. Wait approximately 10 minutes in order for the ignition transformer to cool
down and the bimetal switch the close again. After this, the system continues to operate.
3. Verification of ignition tip functioning
The easiest and quickest way to identify a defect is to replace the ignition tip by a new one.
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