General Errors - A.O. Smith BFC Cyclone Installation, User And Service Manual

11.1.1
n
Indication
Gas smell
The display is off
Water leakage
Explosive ignition
90

General errors

Note
For the coding of the connections, refer to the Electrical wiring diagram.
Cause
There is a gas leak
The water heater is off.
There is no supply voltage.
Defective fuse(s)
There is a leakage from a threaded
water connection.
There is a condensate leakage
There is a leakage from another nearby
water heater or pipe segment.
There is a leakage from the water heater
tank.
The gas supply pressure is incorrect.
The CO value is incorrect.
2
The burner is contaminated.
There is an air leakage between the
venturi and the flexible air connector.
Measure
• Close the mains gas valve at once.
• Do not operate any switches.
• No naked flames.
• Ventilate the boiler room.
• Immediately contact your installation
engineer or your local gas company.
Turn on the water heater (see section 4.1).
Make sure that:
the control switch is set to I.
•
• the isolator is in ON position.
• there is power on the isolator.
• there is power to the electrical connector
block.
The measured voltage must be
230 V (-15%, +10%).
AC
Replace the fuse(s).
Tighten the threaded connection.
Make sure that the condensation water
discharge is working properly.
If necessary, correct the water discharge.
Trace the leakage.
Contact the supplier of your water heater.
Check the gas supply pressure, refer to Gas
supply pressure.
Check the CO value, refer to CO
2
Clean the burner, refer to Gas-side
maintenance (see section 10.3).
Make sure that:
• the flexible air connector is not damaged.
If necessary, replace the flexible air
connector.
• the flexible air connector is correctly
connected to the venturi.
If necessary, tighten the clamp.
Installation, Maintenance and Service part
value.
2