26
Troubleshooting
Diagnostics (cont.)
Burner control unit
H in fault state,
red fault lamp C illuminates
constantly
- Diagnosis of fault causes:
- wait at least 10 s
- press reset button B for at least
3 s.
- read the flashing code of the fault
lamp (see fault table).
- after every flashing code a break
of approx. 3 s
- reset, i.e. press reset button B
0.5Ăto 3 s long.
H operational,
green signal lamp A illuminates
constantly
- press reset button B 0.5 to 3 s
long when a code flashes to
reinstate system operation.
5692Ă534ĂGB
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