Bedienungsanleitung Wodtke Family.nrg (Seite 55 von 68) (Englisch)

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Class 1 fault code

Cause of fault

Resolution of fault

LM Er1 =

air volume sensor break

Case A: air volume sensor break (= component error)

Case B: external error due to exhaust gas back-flow. Sen-

sor element temperature > 120 °C (also see error descrip-

tion for TL). If the sensor is heated to values > 120 °C due

to exhaust back-flow, this is evaluated as a component er-

ror (break) and the display switches to LM Er1. If the

unit/the sensor has cooled and the sensor is not perma-

nently damaged, the unit can be switched on again.

Case A: Replace air volume sen-

sor + reset via I/O button.

Case B: Air volume sensor does

not need to be replaced. Find / re-

solve external error (for reasons,

see errors TL, Hi / TL Grd) then re-

set via I/O button.

LM Er2 =

Air volume sensor short-

circuit

Short circuit = component error

Test / replace air volume sensor +

reset via I/O button.

TR Er1 =

Flue gas sensor break

Break = component error

Test / replace TR + reset via I/O

button.

TP Er1 =

Pellet chute sensor break

Break = component error

Test / replace TP sensor + manu-

ally reset via

I/O button.

TP Er2 =

Pellet chute sensor short-

circuit

Short circuit = component error

Test / replace TP sensor + manu-

ally reset via

I/O button.

HB Er1 =

control board break or

break in connection cable

from control board to main

board or communication

with Touch Control TC1

(option) disrupted

Break = component error

First test connection cable for con-

tinuity/polarity, etc. and only there-

after test/replace control

board/TC1 and manual reset via

I/O button. If the display is broken,

the error is displayed even if the

new control board is already con-

nected. Then briefly press the I/O

button so that the unit recognises

the new control board.

RE Er1 =

Bridge on "Reserve input"

is open

Bridge wire on "Reserve input" open or error on external

component/unit.

Notice: The "Reserve input" serves for feedback from ex-

ternal accessories. It is verified 15 seconds after each start

whether this input is bridged; that is, closed. Only then does

the unit go into the heating programme. The "Reserve in-

put" is then continually inspected. If the bridge on the "Re-

serve input" is opened, a fault shut-down / safety function

occurs (Class 1 error).

Application examples (also see assembly instruc-

tions):

1) Flue gas damper for flue gas: if a mechanical motorised

flue gas damper is used, the normally open contact of this

damper can be connected to the Reserve input. The wodtke

Pellet Primärofen then only operates if the flue gas damper

is opened. If an error occurs on the flue gas damper, the

unit is deactivated via the safety function. The flue gas

damper must open completely by motor within 15 sec, as

otherwise there is an error message because the feedback

to the unit occurs too late.

2) Intake damper for combustion air: for the combustion air:

function, application and wiring like in a flue gas damper.

3) Interlock with ventilation system / extraction hood: if the

ventilation system or extraction hood has a potential-free

output as the operating signal, this output can be con-

nected to the Reserve input as normally closed. The wodtke

Pellet Primärofen only operates if the extraction hood/ven-

tilation is not operating. All described examples can be con-

nected electrically in series so that the wodtke Pellet

Primärofen only operates if all external devices are func-

tioning, or deactivates as soon as one single device has a

malfunction.

Check wire bridge on "Reserve in-

put" and insert correctly.

If an external component is con-

nected, check external component

for correct wiring/function (espe-

cially normally open contact) and

replace if necessary.

Afterwards, manual reset via I/O

button.

Attention: A reset of the "RE

Er1" error message and a restart

as a result is only possible if the

"Reserve input" is bridged

(closed) again.

Note: In the case of external de-

vices connected in series, all ex-

ternal devices and the entire ex-

ternal wiring must be inspected.

Fault code

Class 1

Cause of fault

Resolution of fault

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