Troubleshooting
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B0430408_en
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5
5
Troubleshooting
5.1
General faults in the power supply
Error
Cause of error
Error correction
Nothing is shown on the
display
No power to the controls
General power failure
FI circuit breaker or line
protection is switched off
Switch on the FI circuit breaker or line
protection
5.1.1
Behaviour of system after a power failure
When the power supply has been restored the boiler returns to the
previously specified mode and is controlled according to the specified
program.
EXCEPTION:
If the boiler was at operating status “Heating up”, “Pre-heating” or
“Ignition” it follows shutdown procedure and cleaning is started. Only
then does the boiler switch to “Preparation” operating status and the
system starts again.
5.2
Excessive temperature
The STL shuts down the boiler when it reaches a maximum temperature
of 105°C. After the boiler has cooled down, the safety temperature
limiter (1) must be manually unlocked:
U
Unscrew the cap on the safety temperature limiter
U
Reset the safety temperature limiter by pressing with a screw-driver.
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Summary of Contents for P4 Pellet 15
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