11
Mini Johanna
4.6 Cleaning the flue and baffle
A reduction in heat output is nearly always due to
obstruction of the flue. Also, the presence of burnt gases with odours
can be a sign of an obstructed flue.
The flue of your stove must be cleaned at regular intervals. The amount of soot and the frequency of cleaning will
depend largely on the type of fuel and the type of use (low or high heat output).
Clean the flue pipes, proceeding as follows:
- Clean only when the stove is cold;
- Close all openings which are not to be cleaned;
- Remove the flue pipes and clean them outdoors;
- Remove and suck all deposits inside the stove, after removing the hotplate rings and their support;
- Remove all residuals on the grate or in the ash pan
- Open the opening “D” for cleaning (see page 4);
- Remove the layer of soot under the oven zone using scraper;
After cleaning all the flue, close the opening “D” under the oven zone.
Before refitting the hotplate rings, check the brick lining of the fire zone. Fine cracks in the lining are inevitable, and do
not affect stove operation. Minor damage can be repaired using refractory mortar
5 – TROUBLESHOOTING
5.1 The stove does not work
- Make sure the connection and size of the flue are suitable for the stove's heating power.
- Make sure the flue is constructed in conformity with the current regulations.
- Make sure the flue inspection doors and openings are closed and sealed.
- Make sure no other appliances are connected to the flue.
5.2 Difficult lighting
- Open the primary air control and the damper.
- Use wood with low moisture content.
- Make sure the room is well-ventilated, to ensure a sufficient amount of oxygen in the air.
- Make sure the flue is suitable for the stove's heating power.
5.3 Smoke leaks
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Check the flue draught.
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Make sure the flue pipe connection complies with the seal requirements.
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Make sure the ash does not obstruct the primary air grille.
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Make sure combustion residuals do not block the flue pipe.
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Make sure the primary air control is open.
5.4 The glass gets dirty quickly
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Make sure the fuel is of a recommended type.
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Make sure the wood is seasoned and dry.
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Too much fuel in the combustion chamber.
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Make sure the secondary air control is correctly adjusted.
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Check the flue draught.
5.5 Condensate in combustion chamber
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Make sure the procedure for first lighting has been carried out.
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Make sure the fuel is of a recommended type.
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Make sure the wood is seasoned and dry.
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Make sure the flue is insulated and complies with the applicable standards.
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Check the flue draught.
5.6 The oven does not heat
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Make sure the oven door is properly closed.
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Make sure the damper is closed (pos. “Z”)
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Make sure the fuel burns normally.
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Make sure there is sufficient flue draught.
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Make sure the combustion gas ducts are clean.
