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System Operation Messages / Faults

Fault code number Aids

H / Ü 321* Wire break feedback channel 1 E9

H / Ü 322* Wire break feedback channel 2 E9

H / Ü 323* Wire break feedback channel 3 E9

H / Ü 324* Wire break feedback channel 4 E9

H / Ü 325* Wire break feedback channel 5 E9

H / Ü 351* Barred curve change with burner running G3

put defective C4

Ü 372 Load value difference between HP and UE too great A7,D11

Ü 381 Difference between HP & UE too great

Correction input 1 A7,F6

Ü 382 Difference between HP & UE too great

Correction input 2 A7,F6

Ü 391 Fuel valves opened in ST operating mode A7,A19

H 392 Remote no longer responds (time-out)

H 393 Remote shut-off has been triggered

(shut-off via interface)

Ü 400 Different point number on acceptance A23

H / Ü 451* Ignition position was exited in ignition mode, channel 1 E18

H / Ü 452* Ignition position was exited in ignition mode, channel 2 E18

H / Ü 453* Ignition position was exited in ignition mode, channel 3 E18

H / Ü 454* Ignition position was exited in ignition mode, channel 4 E18

H / Ü 455* Ignition position was exited in ignition mode, channel 5 E18

H 500 Internal comparison: relay output terminal 67 does not pull on A19, A7

H 501 Internal comparison: relay output terminal 43 does not pull on A19, A7

H 502 Internal comparison: relay output terminal 16 does not pull on A19, A7

H 503 Internal comparison: relay output terminal 11 does not pull on A19, A7

H 504 Internal comparison: relay output terminal 45 does not pull on A19, A7

H 505 Internal comparison: relay output terminal 68 does not pull on A19, A7

H 506 Internal comparison: relay output terminal 36 does not pull on A19, A7

H 507 Internal comparison: relay output terminal 41 does not pull on A19, A7

H / Ü 352** Inadmissible curve selection (no selection signals present) G4

H / Ü 353** Inadmissible curve selection

(more than one selection signal present simultaneously) G4

H 360 Fault switch-off through integral O regulator

H / Ü 361 Different status from ignition position relay E6

H / Ü 370 Internal communication between processors defective A20

H 371 Internal load out

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