Bedienungsanleitung Wodtke Easy.nrg S5 (Seite 54 von 68) (Englisch)

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Fault code

Class 1

Cause of fault

Target values

Resolution of fault

TR =

Flue gas temperature

too low. Measurement point:

Combustion chamber.

Sensor NiCrNi

Image / case 1

Do not ignite! Empty pot

first. See to the right

Flue gas fan temperature TR

too low. There are often also unburned

pellets in the burner pot.

Case 1: False start; burner pot filled

with pellets, no flame. TR temperature

not reached:

 Burner pot / unit not cleaned 

false start

 Negative pressure in installa-

tion room (resulting in flow re-

versal in the ignition)  false

start (often associated with flue

gas escaping from the unit)

 Ignition cartridge defective 

false start

TR ≥ 150 °C

Query occurs 18

minutes after the

start signal for

the furnace for

the first time, and

is then monitored

continually.

Upon restart, the

query waits 18

minutes again.

Always clean / empty burner

pot before restarting. Atten-

tion: Never empty content of

burner pot into the storage

container – risk of fire from

embers!

Troubleshooting: Inspect,

verify combustion air supply.

Negative pressure in the in-

stallation room of the furnace

due to exhaust hood, residen-

tial ventilation or pneumatic

conveyance systems is not

permitted and dangerous.

Also see country-specific reg-

ulations and separate tech-

nical information. Inspect igni-

tion cartridge. Only after-

wards, perform manual reset

via I/O button

Image / case 2

Do not ignite! Empty pot

first. See to the right

Case 2 cause: Shut-down in opera-

tion, because there aren't enough pel-

lets in the storage container or container

has run empty (there are only a few pel-

lets in the burner pot)

Remedy for case 2: refill pel-

lets, empty / clean burner pot.

Reset and restart.

TP =

Pellet chute temperature too

high

Measurement point: Pellet

chute

Measurement sensor: TP 1000

External error!

Caused for example by negative pres-

sure due to ventilation system or extrac-

tion hood. Or chimney draught much too

low with voltage failure (fan). Or pellets

with through-put/heating value that is

much too high.

TP < 200 °C

There is not a unit defect!

Allow unit to cool until TP is

below threshold.

Find and resolve exter-

nal cause. Only afterwards,

manual reset via I/O button

See above regarding nega-

tive pressure

ST =

safety temperature limiter STB

has triggered!

Measurement point of air units:

capillary sensor on storage

container radiation plate

STB measurement sensor ac-

cording to DIN 3440. Notice,

the STB is a mandatory, au-

tonomous safety component

with its own switch housing

and operates decoupled

from the control.

External error!

Unit temperature is too high. STB trig-

gered because temperature is too high

(safety function). Normally an external

cause, not a unit fault, because STB is

only triggered if the heat generated by

the unit is not withdrawn.

Causes: Overheating

T STB ≤ 95 °C

no query possi-

ble.

There is not a unit defect.

Find and resolve external

cause. Inspect convection

air inlets and outlets. Re-

duce heating output if the

room temperature is too

high.

Allow unit to cool until STB

is below threshold. Only af-

terwards, unlock the STB+

manual reset via I/O button

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