Installation / Operation Instruction Manual

66
Problem solving
RTG-L-199/160N/X1 – 6 721 827 274 (2022/06)
C8 Main water valve [22] disconnected or damaged. ▶ Check main water valve wire connections.
1)
If the problem persists:
▶ Replace main water valve and/or wire
connections. After valve replacement, proceed
with main water valve calibration
(section 6.6).
1)
C9 Barometric pressure sensor fault. ▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Replace electronic control unit (ECU).
1)
CA Water flow above 9.2gpm. ▶ Disconnect the appliance and purge hydraulic
circuit to remove air.
1)
▶ Install water flow restrictor.
1)
▶ Check water pressure does not exceed 150psi
(section 3.2).
CE
4)
Excessive flue blockage detected during operation
due to excessive pressure on the siphon.
Appliance shuts down for safety.
▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Check exhaust pipes and terminals for
obstructions and reset the error.
▶ Check if the air filter is dirty or clogged, clean or
replace it if needed.
▶ Check if flue length is according to specification
(section 4.6) and reset the error.
▶ Perform gas and air tuning ( section 8.11).
1)
CF
4)
Excessive flue blockage detected during operation
due to insufficient combustion air.
Appliance shuts down for safety.
▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Check air intake and exhaust pipes and terminals
for obstructions and reset the error.
▶ Check if the air filter is dirty or clogged, clean or
replace it if needed.
▶ Check if flue length is according to specification
(section 4.6) and reset the error.
▶ Perform gas and air tuning ( section 8.11).
1)
▶ Contact Bradford White support line for
additional information and assistance in case of
installation in dusty areas.
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 (90 °C).
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.
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