THERMOSTAHL ECW 15 - User Manual

Questions and Answers

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robertsjamesAug 9, 2025
Why THERMOSTAHL ECW 15 does not reach set temperature?
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  Michelle HodgesAug 10, 2025
  The THERMOSTAHL Boiler might not be reaching the set temperature due to several reasons. The fan could be blocked, or its regulator and thermostat might not be functioning correctly, so check or replace the fan. The air passages might be blocked, so clean them. The boiler itself might need cleaning. Ensure the boiler is started correctly. There might be insufficient water in the system, so fill it. The pump debit could be too high, so regulate the pump speed. The boiler might be under dimensioned. The fuel used could be of bad quality, so change the fuel. Finally, there might be insufficient chimney draught, so check or clean the chimney.
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charles74Aug 14, 2025
What to do if there is smoke coming out of the THERMOSTAHL Boiler doors?
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  Robert HenryAug 14, 2025
  If smoke is coming out of the THERMOSTAHL Boiler doors, it could be due to several reasons. First, the boiler doors may not be regulated properly, so regulate the doors so that the sealing cord stays tight. Second, the sealing cord of the door might be defective, so check or replace it. Third, there might be insufficient chimney draught, so check or clean the chimney. Fourth, the air supply by the fan might be too high, so reduce the air speed.
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Anthony GarciaAug 19, 2025
What to do if the fan does not function or it makes a lot of noise in THERMOSTAHL ECW 15 Boiler?
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  Lori MatthewsSep 12, 2025
  If the fan in your THERMOSTAHL Boiler isn't functioning or is making excessive noise, it could be due to several reasons. The set temperature might have been reached, so correct boiler function. It could be disconnected by the safety thermostat, so reset manually. The capacitor or motor might be defective, so check or replace the fan. There might be a bad electrical connection of the fan, so check the electrical connection of the fan.
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April ClarkeAug 25, 2025
What to do if high temperature in the THERMOSTAHL Boiler, but low temperature at the radiators?
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  ashleysteinAug 25, 2025
  If you're experiencing high temperature in the THERMOSTAHL Boiler but low temperature at the radiators, it could be due to a couple of reasons. There might be too high hydraulic resistance in the heating network, so increase the pump speed. Alternatively, the thermostatic mixing valve might be connected wrong, so check or replace the mixing valve.
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Angela DavisAug 29, 2025
How to stop condensation formation in the fire chamber of THERMOSTAHL ECW 15?
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  Danielle SmithAug 29, 2025
  Condensation forming in the fire chamber of your THERMOSTAHL Boiler could be due to a few reasons. The boiler power might be too big, so load less fuel in the chamber. The return temperature in the boiler might be too low, so install a return protection system or thermostatic valve. The fuel might have excessive humidity, so change the fuel used.
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Cynthia MontoyaSep 3, 2025
Why the lamps of the control panel do not light in THERMOSTAHL ECW 15?
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  Emily GraySep 3, 2025
  The lamps of the control panel in your THERMOSTAHL Boiler might not be lighting up due to several reasons: there may be no electrical supply to the lamp, the control panel may not be connected to electricity, the lamp itself could be defective, or there might be an electric cable defect. Check or replace the lamp. Connect to electricity. Check or replace the cables.