Instruction manual

3266

Start-up, calibration and operation of the burner

8.7.12 Lock-out types

The control box display causes of malfunctioning any time that

lock-out occure, identified by the reset button color. The se-

quence of led pulses in the reset button issued by the control box

identifies the possible types of malfunction, which are listed in the

table below.

The frequency of the flash of reset button for the status indication,

See “Fault diagnostics” on page 22.

8.7.13 Controlled intermittent operation

After 24 hours of continuous operation at the latest, the control-

box will initiate automatic reset shut-down followed by a restart.

Description Lock-out time Led color Probable cause

The flame is not detected

after the safety time

Immediate RED

Steady ON

– flame detector defective or dirty;

– oil valve defective or dirty;

– faulty ignition transformer;

– badly regulated burner;

– oil fuel not present.

Presence of extraneous

light the turning on of the

burner

After max. 25 seconds RED

blinking

– presence of a extraneous light after the limit thermostat

switching on;

– presence of extraneous light during pre-purging.

Flame failure during oper-

ation

After 3 recycles RED

fast blinking

– badly adjusted burner;

– oil valve defective or dirty;

– flame detector defective or dirty.

WARNING

To reset the control box after visual diagnostics

have been displayed, you must press the reset

button.