2 | LWZ 304-404 SOL www.stiebel-eltron.com

CONTENTS | OPERATION

General information

1. General information ��2

1.1 Safety instructions �� 2

1.2 Other symbols in this documentation �� 2

1.3 Units of measurement �� 3

2. Safety �� 3

2.1 Intended use �� 3

2.2 Safety instructions �� 3

2.3 CE designation �� 3

2.4 Test symbols �� 3

3. Appliance description ��3

4. Operation ��4

4.1 Controls �� 4

4.2 Picture symbols in the display �� 4

4.3 Activating �� 5

4.4 Scroll wheel �� 5

4.5 Menu structure �� 6

4.6 Entering parameters �� 6

4.7 Appliance functions �� 7

4.8 Selecting operating modes �� 14

4.9 Favourites, quick access, function block �� 14

4.10 Fault message �� 15

4.11 Operating modes overview �� 16

4.12 Menu overview �� 16

5. Cleaning, care and maintenance �� 23

5.1 Replacing supply air and extract air ﬁlters �� 23

6. Troubleshooting �� 24

6.1 Filter symbols appear �� 24

6.2 No hot water �� 24

6.3 The safety valve of the cold water supply line is dripping

�� 24

6.4 The fault symbol appears �� 24

6.5 The appliance leaks water �� 24

6.6 Condensate on the outside of the appliance or on the air

hoses �� 24

6.7 Noise is emitted �� 24

6.8 The required ﬂow temperatures are not reached, par-

ticularly during drying out �� 24

6.9 The accommodation is always too cold �� 24

6.10 The accommodation is always too hot �� 25

6.11 The accommodation is too cold in winter�� 25

6.12 The accommodation is too hot in winter �� 25

6.13 The accommodation is too cold in spring and autumn � 25

6.14 The accommodation is too hot in spring and autumn ��25

6.15 The accommodation is too hot in summer �� 25

6.16 Air quality is too poor �� 25

6.17 The air in winter is too dry �� 25

GUARANTEE

ENVIRONMENT AND RECYCLING

1. General information

This manual is intended for the appliance user and qualiﬁed con-

tractors.

Note

Read these instructions carefully before using the appli-

ance and retain them for future reference.

Pass on the instructions to a new user if required.

1.1 Safety instructions

1.1.1 Structure of safety instructions

KEYWORD Type of risk

Here, possible consequences are listed that may result

from failure to observe the safety instructions.

f Steps to prevent the risk are listed.

1.1.2 Symbols, type of risk

Symbol Type of risk

Injury

Electrocution

Burns

(burns, scalding)

1.1.3 Keywords

KEYWORD Meaning

DANGER Failure to observe this information will result in serious

injury or death.

WARNING Failure to observe this information may result in serious

injury or death.

CAUTION Failure to observe this information may result in non-seri-

ous or minor injury.

1.2 Other symbols in this documentation

Note

Notes are bordered by horizontal lines above and below

the text. General information is identiﬁed by the adjacent

symbol.

f Read these texts carefully.

Symbol

!

Material losses

(appliance damage, consequential losses and environmen-

tal pollution)

Appliance disposal

!

296066-38500-9030_LWZ_304-404_SOL_Bedienung_en.indb 2 21.07.2015 12:03:37

Brand	STIEBEL ELTRON
Model	LWZ 404 SOL
Category	Fan
Language	English

STIEBEL ELTRON LWZ 404 SOL Operation

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