Heta SCAN-LIINE 80 XL, Operating And Installation Instructions

10 

troubleshooting table - applies to all stove types

Fault

Cause

Troubleshooting

Solution

Lighting problems. When the 
stove is cold, smoke seeps 
into the room. Once the com-
bustion chamber has heated 
up, the stove burns well.

Inadequate chimney draft. 
The chimney only has 
sufficient draft when it is hot.

You can test using a lighter whether 
flame is drawn into the combustion 
chamber. 

Improve the chimney.

The stove burns poorly after 
the warm-up phase, and the 
glass slowly soots up.

Soot in the flue pipe.

Check the flue pipe regularly, as the 
problem arises slowly.

Clean regularly, and limit the use 
of horizontal flue pipes. Do not use 
firewood which generates large 
quantities of ash.

If the stove burns poorly
after start-up, and the
glass slowly soots up.

Inadequate chimney draft.

The fault usually already occurs during 
lighting. Measure the chimney draft.

Improve the chimney draft. 

Insufficient air supply.

Check the air supply.

Read the operating instructions and 
instruct all users.

Damp wood.

Use clean, dry wood with a maximum 
moisture content of 20%.

Firewood should ideally be dried for 
at least one year after splitting.

Firewood pieces too large.

Optimal size – see the section for 
firewood, max. diameter 10 cm.

Use smaller pieces of firewood.

Insufficient air supply to the 
room. Range hoods, airtight 
windows, etc.

Ensure there is sufficient fresh air 
supply, open a window, check the 
outdoor air supply.

Depending on the cause, windows 
must be opened or the outdoor air 
connection cleaned. 

Insufficient air supply to the 
room. Range hoods, airtight 
windows, etc

Ensure there is sufficient fresh air 
supply, open a window, check the 
outdoor air supply.

Depending on the cause, windows 
must be opened or the outdoor air 
connection cleaned.

The vermiculite in the com-
bustion chamber is becoming 
very worn.

Wood and flue gases wear 
down the vermiculite.

Investigate whether the wear is 
normal. 

Normal wear and minor cracks are of 
no significance. It should be replaced 
when the steel of the combustion 
chamber is visible.

Too rapid combustion.

Too much chimney draft.

To test, you can open the cleaning 
hatch, but remember to close it again.

Measure the chimney draft and install 
a damper in the flue pipe if necessary.

The door or ash pan/drawer 
seal is defective.

While cold, close a piece of paper in 
the door – the seal should hold the 
paper gently in place so it does not 
fall out by itself. Normal wear.

Replace the seal.

The vermiculite in the 
combustion chamber is 
cracked.

Shocks or impacts while 
adding firewood.

Normal wear

Cracks only have cosmetic signifi-
cance. Replace when the steel of the 
combustion chamber is visible.

Steel surfaces in the 
combustion chamber 
have oxidised.

The temperature in the 
combustion chamber is 
too high.

Unsuitable fuel is being used (such as 
coal). Check the quantity of firewood 
being used, read the operating in-
structions.

If there are clear cracks or weak-
nesses in the stove body, it must be 
replaced.

The stove whistles

Too much chimney draft

To test, you can open the cleaning 
hatch, but remember to close it again.

Install a damper.

The stove 'clunks'

Usually due to tension in the 
metal plates.

Generally only occurs while heating up 
and cooling down.

Adjust the metal plates.

The stove ticks

Normal expansion and 
contraction due to 
temperature changes.

A normal sound.

Ensure that the temperature in the 
combustion chamber is as constant 
as possible.

The stove creaks.

The temperature in the com-
bustion chamber is too high.

Use less firewood. Also check the seal 
in the ash pan/drawer.

See the operating instructions.

The stove smells. 
The surface is steaming.

The paint on the stove sur-
ace is not yet fully hardened.

See the operating instructions 
regarding the first firing.

Ensure there is sufficient ventilation.

Condensation in the 
combustionchamber.

Moisture in the vermiculite.

Check the condition of the vermiculite.

Evaporates by itself after the stove has 
been lit a few times.

Damp wood.

Measure the moisture content.

Use dry firewood.

Condensation from the flue 
pipe.

The pipe is too long or the 
chimney is too cold.

Check the flue pipe's length and heat 
loss.

Improve the flue pipe, insulate the 
chimney.

Damp wood

Measure the moisture content.

Use dry firewood.

Moving parts creak. 

Needs lubercation.

What part .

Lubercate with graphite spray.