Bosch Greentherm 9800 SECO 199, Installation And Operating Instructions Manual

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6 720 817 281 (2017/05) Greentherm 9800 SEO 160/199 | SECO 199
40 | Problem solving
CE Flue blockage detected during operation due to
excessive pressure on the siphon. ▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Check air openings and exhaust opening for
obstructions and reset the error.
▶ Perform gas and air tuning (

section 10.11).
1)
CF Flue blockage detected during operation due to
insufficient combustion air. ▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Check air openings and exhaust opening for
obstructions and reset the error.
▶ Perform gas and air tuning (

section 10.11).
1)
E0 Electronic control unit internal error. ▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Replace electronic control unit.
1)
E1 Hot water temperature above 194 °F.
Appliance burner cut off to prevent scalding and
reactivation after cooling down. ▶ Disconnect the appliance and purge hydraulic
circuit to remove air.
If the problem persists:
▶ Reduce setpoint temperature to minimize
temperature instabilities.
E3 Flue gases temperature above 194 °F or 2 minutes
above 145 °F.
Appliance burner cut off to prevent overheating. ▶ Descale appliance (

section 9.3).
1)
▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Check sensor resistance [15] (

section 13) and
replace the sensor if it is not according to
specification.
1)2)
E4 Air temperature inside cabinet above 176 °F or 2
minutes above 158 °F.
Appliance burner cut off to prevent overheating. ▶ Check for flue gas leakage inside the cabinet
1)
▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Check sensor resistance [18] (

section 13) and
replace the sensor if it is not according to
specification.
1) 2)
E5 Condensing unit flue gases temperature above
428 °F or 2 minutes above 392 °F.
Appliance burner cut off to prevent overheating. ▶ Descale appliance (

section 9.3).
1)
▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Check sensor resistance [16] (

section 13) and
replace the sensor if it is not according to
specification.
1) 2)
E7 Electronic control unit internal error. ▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Replace electronic control unit.
1)
Display Description Solution
Table 20