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Documentation Department
EN
P5253 JS F 67580 Mertzwiller
1. Blocking of the safety control box
After 5 safety shutdowns, the safety box remains blocked at fault.
To unlock the safety box: turn off the burner power supply with the ON/
OFF button or by pulling out the burner plug.
After switching on again, reset the safety box by pressing the reset button.
The fault counting of the safety box is reset to 0, after each safety
box switching off (switching off by ON/OFF button, by unplugging
the burner or by power failure).
Troubleshooting help - Signification of the safety control box reset
button flashing:
Normal operating
OFF
Pre-heating time
Pre-ventilation
Safety time
Normal operating
Fault description
Extraneous light (false flame signal)
Frequency supply error
Voltage monitor error
Reset button fault
Lockout due to no flame after ts
Lockout for false flame signal
Lockout for maximum number of recycles
Lockout for pre-heating not finished
Lockout for fan motor error
Lockout for oil valve error RED
Lockout for eeprom error
Key :
ON
OFF
BE - ER15012
Reset button colour
Reset button colour
GREEN
Colour code
* Blinking depending on the flame signal quality : correct (1-2 blinks),
RED
good (3-4 blinks) or excellent (5 blinks or always ON).
ORANGE
GREEN
EFU 22 / 29 (FF) - EFU C 19 / 24 / 32
N° IT2656-en
Seconds Colour code
OFF
-
GREEN blinking
0,5
ORANGE blinking
0,5
GREEN blinking
0,5
-
GREEN
*
Seconds Colour code
GREEN
blinking
, RED
0,5
alternately
ORANGE
-
GREEN
ORANGE,
fast
0,2
blinking alternately
blinking
, RED fast
0,2
alternately
RED
-
RED
0,5
blinking
RED
0,2
fast blinking
RED blinking
0,5
RED, ORANGE
2,5
inverted blinking
RED, GREEN
2,5
inverted blinking
ORANGE, GREEN
0,5
blinking alternately
1 / 5
Technical information
Fuel oil fired boilers
EFU C 24 /32 PLUS
Diagnostic aid - Fault finding
Product evolution
-
-
2,5
0,5
0,5
-
Blinking
or steady ON
0,5
-
Steady ON
0,2
0,2
-
Steady ON
0,5
0,2
2,5
0,5
0,5
0,5
TI
Heading No 1
27/01/2017
L000836-A
IT2656
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Table of Contents
Related Manuals for De Dietrich Thermique EFU 22
Summary of Contents for De Dietrich Thermique EFU 22
- Page 1 Technical information Documentation Department Heading No 1 Fuel oil fired boilers EFU 22 / 29 (FF) - EFU C 19 / 24 / 32 EFU C 24 /32 PLUS Diagnostic aid - Fault finding Product evolution P5253 JS F 67580 Mertzwiller N°...
- Page 2 2. Important recommendations for EFU C 19 boilers In case of repeated burner defects (B33), check following points: Flame detection cell: Check the presence of the supersensitive flame detection cell (including star ) to allow a better flame detection. The flame detection cells available in the spare parts centre under the reference 7626801, are all supersensitive versions.
- Page 3 3. Recommendations for horizontal forced flue connection Diameter 80/ 125 (C13) The use of DE DIETRICH connection accessories is recommended because they include a deflector limiting the recirculation of flue gases (For the majority of terminal manufacturers, the recirculation rate is high). Combustive air inlet kit (Package MY435) + Horizontal terminal (Package FM183) L : For each additional metre of horizontal conduit, subtract 1.2 m from the vertical length Lmax.
- Page 4 If the suction line is designed as a self-securing suction line according to the applicable technical regulations, remove all check valves upstream of the Flocotop filter. Boiler type EFU C 19 ... EFU C 24 (PLUS) ... EFU C 32 (PLUS) ... EFU 22 ... EFU 29 ... Burner type RDB 2.2(1) RDB 2.2 RDB 2.2...
- Page 5 5. New flame detection cell A new supersensitive flame detection cell (marked with an asterisk ) equip all burner versions of the EFU... boiler range, since August 30 * 4 - from burner serial number 01356073191. The flame detection cells available in the spare parts centre under the reference 7626801, are all supersensitive versions.
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