Bosch Greentherm T9800 SEO199 Installation And Operating Instructions Manual page 46

Problem solving
Display Description
CA Water flow above 9.2gpm.
CE Flue blockage detected during operation due to
excessive pressure on the siphon.
CF Flue blockage detected during operation due to
insufficient combustion air.
E0 Electronic control unit internal error.
E1 Hot water temperature above 194 °F (90 °C).
Appliance burner cut off to prevent scalding and
reactivation after cooling down.
E3 Flue gases temperature above 167 °F (75 °C) or 2
minutes above 145 °F (63 °C).
Appliance burner cut off to prevent overheating.
46
Solution
▶ Disconnect the appliance and purge hydraulic circuit
to remove air.
▶ Install water flow restrictor.
▶ Check water pressure does not exceed
150psi.(section
▶ 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.
▶ Check if the air filter is dirty or clogged.
▶ Perform gas and air tuning ( section 8.11).
▶ Contact Bosch support line for additional
information and assistance in case of installation in
dusty areas.
▶ 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.
▶ Check if the air filter is dirty or clogged replace it if
needed.
▶ Perform gas and air tuning ( section 8.11).
If the problem persists:
▶ Contact Bosch support line for additional
information and assistance in case of installation in
dusty areas.
▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Replace electronic control unit.
▶ Disconnect the appliance and purge hydraulic circuit
to remove air.
If the problem persists:
▶ Reduce setpoint temperature to minimize
temperature instabilities.
▶ Descale appliance ( section 7.3).
▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Check sensor resistance [15] (section 11) and
replace the sensor if it is not according to
specification.
Greentherm T9800 SEO 160/199 | SECO 199 – 6 720 817 281 (2018/12)
1)
1)
3.2
).
1)
1)
1)2)
1)
1)