Rectifying problems
27
10 Rectifying problems
WARNING!
Troubleshooting may be performed by specialist
personnel with the corresponding qualifications
only.
If you troubleshoot without corresponding specialist
training and above all without the required experience,
safe operation is no longer guaranteed. The resulting
defects and consequential damage are excluded from
the guarantee and warranty.
Likewise, improper implementation can lead to serious
injuries.
DANGER!
Switch off the precipitator power supply
prior to troubleshooting
Before troubleshooting on the precipitator, the power
supply must be switched off.
Switch off the electricity to the boiler via the mains
switch prior to troubleshooting. This also switches
off the power supply to the precipitator.
Possible precipitator malfunctions
Precipitator malfunctions are displayed on the screen on the boiler via the ETAtouch control system. Not all precip-
itator malfunctions also end the boiler heating mode. If the high voltage unit fails, for example, a message is
displayed, but the boiler heating mode continues to run. The flue gas is not cleaned as a result, however.
Error
Cause
Solution
High voltage: interruption
The connection between the
high voltage unit and the
electrode is interrupted.
•
Inspect the connection line between the
high voltage unit and the electrode for damage
and replace if necessary.
•
Inspect the power supply (230 V) from the
boiler to the precipitator.
High voltage: short circuit
The connection between the
high voltage unit and the
electrode is short-circuited.
Eventually a direct
connection between the
discharge electrode and the
inside of the precipitator is es-
tablished.
•
Check the electrode dedusting. The "striking
weight" may not be in the idle position (up) and
touching the electrode.
•
Inspect whether a connection is present (e.g:
as a result of adhering dust) between the
electrode and precipitator and remove it.
•
Inspect the connection line between the
high voltage unit and the electrode for damage
and replace if necessary.
Low degree of separation -
overvoltage too low
The electrode no longer has
sufficient high voltage.
Eventually a direct
connection between the
discharge electrode and the
inside of the precipitator is es-
tablished.
The isolator is
badly contaminated or
defective.
•
Check the electrode dedusting. The "striking
weight" may not be in the idle position (up) and
touching the electrode.
•
Inspect whether a connection is present (e.g:
as a result of adhering dust) between the
electrode and precipitator and remove it.
•
Inspect the connection line between the
high voltage unit and the electrode for damage
and replace if necessary.
•
Inspect the isolator for impurities or damage.
Also clean out the opening between the
isolator and electrode holder with a vacuum
cleaner.
Summary of Contents for EEP 130
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