A.O. Smith BFC - 60, BFC - 30 Troubleshooting table for general errors, Display is off

Models: BFC - 30 BFC - 60

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13.2 Troubleshooting table for general errors

Warning

Maintenance may only be performed by a qualified service and maintenance engineer.

General errors

Symptom

Cause

Solution

 

Remark

 

 

 

 

 

 

 

 

 

 

Gas smell

Gas leak

 

 

 

 

 

 

 

 

 

Warning

 

 

Warning

 

 

 

 

 

 

 

 

 

 

 

 

Close the main gas valve immediately.

 

 

Contact your installation engineer or local gas company

 

 

 

 

 

Warning

 

immediately.

 

 

 

 

 

Do not operate any switches.

 

 

 

 

 

 

 

 

Warning

 

 

 

 

 

 

 

 

No naked flames.

 

 

 

 

 

 

 

 

Warning

 

 

 

 

 

 

 

 

Ventilate the boiler room.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Display is off

Appliance is turned off

 

Start the appliance up (9 "Starting and running")

 

 

 

 

 

 

 

 

 

 

 

 

No supply voltage

1.

Check if the isolator is ON.

 

See the BFC electrical diagram (17 "Appendices")

 

 

present

2.

Check that there is power to the isolator.

 

If the error persists, consult your installation engineer.

 

 

 

 

 

 

 

 

 

3.

Check whether the ON/OFF switch of the electronic controller is

 

 

 

 

 

 

 

 

ON (position I).

 

 

 

 

 

 

4.

Check whether there is power to the electrical connector block.

 

 

 

 

 

 

5.

The measured voltage must be 230 VAC (-15%, +10%).

 

 

 

 

 

 

 

 

 

 

 

Defective fuse(s)

Replace fuse(s)

 

To replace the fuses, you must contact your installation engineer.

 

 

 

 

 

 

 

 

 

 

Instruction manual BFC

70

Page 70
Image 70
A.O. Smith BFC - 60 Troubleshooting table for general errors, Symptom Cause Solution Remark Gas smell, Display is off