Troubleshooting
Fröling Heizkessel- und Behälterbau Ges.m.b.H, Industriestraße 12, A-4710 Grieskirchen, Austria Page 39
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B0190806
6 Troubleshooting
6.1 General faults in 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
Main switch is turned off
Defective fuse in the controls
Switch on the FI circuit breaker or line
protection
Turn on the main switch
Replace fuse – note current (10AT)
6.1.1 System procedure following 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” troubleshooting is started automatically. When error
correction has been carried out (approx. 20 min) the warning, “Clean/
check burner”, is shown on the display. The warning can only be
acknowledged after checking the burner.
6.2 Excessive temperature
The safety temperature limiter shuts down the boiler when it reaches a
temperature of approx. 100°C. After the boiler has cooled down, the
safety temperature limiter (1) must be manually unlocked:
Unscrew the cap on the safety temperature limiter
Reset the safety temperature limiter by pressing with a screw-driver.
1
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