Siemens 3001138 Quick Start Manual

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CONTROL BOX RMG 508SE

The new RMG 508SE control box, fitted with the reset button extension, replaces control box 508SE, but

does not replace the old 505SE version.

Control box RMG 508SE does not have a delay time between the second stage (terminal 14) and third

stage (terminal 11), as shown on the control box's diagram under the cover - consequently, you will need to

check the burner for malfunctions.

THIS OPERATION MUST BE CARRIED OUT BY A QUALIFIED TECHNICIAN

RESETTING THE CONTROL BOX AND USING DIAGNOSTICS

The control box features a diagnostics function through which any causes of malfunctioning are easily iden-

tified (indicator: RED LED ).

To use this function, you must wait at least 10 seconds once it has entered the safety condition ( lock-out ),

and then press the reset button.

The control box generates a sequence of pulses (1 second apart), which is repeated at constant 3-second

intervals.

Once you have seen how many times the light pulses and identified the possible cause, the system must

be reset by holding the button down for between 1 and 3 seconds.

RED LED on

10s

wait at least

The methods that can be used to reset the control box and use diagnostics are given below.

RESETTING THE CONTROL BOX

To reset the control box, proceed as follows:

Hold the button down for between 1 and 3 seconds.

The burner restarts after a 2-second pause once the button is released.

If the burner does not restart, you must make sure the limit thermostat is closed.

VISUAL DIAGNOSTICS

Indicates the type of burner malfunction causing lock-out.

To view diagnostics, proceed as follows:

Hold the button down for more than 3 seconds once the red LED (burner lock-out) remains steadily lit.

A yellow light pulses to tell you the operation is done.

Release the button once the light pulses. The number of times it pulses tells you the cause of the mal-

function, indicated in the table below.

Once the operations are done, the control box's initial state must be restored using the resetting procedure

described above.

BUTTON PRESSED FOR

Between 1 and 3 seconds

More than 3 seconds

2894

ATTENTION

Press reset

> 3s

Lock-out

for

CONTROL BOX STATUS

Control box reset without viewing visual

Visual diagnostics of lock-out condition:

(LED pulses at 1-second intervals).

3001138

Interval

Pulses

diagnostics.

Pulses