Wolf CGS-2-14/120L User Manual (English)

Other manuals for Wolf CGS-2-14/120L

Questions and Answers:

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yateskathleenAug 30, 2025
Why does the flue gas damper not switch on my Wolf CGS-2-14/120L?
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  Deborah RasmussenAug 30, 2025
  If your Wolf Boiler displays 'Flue gas damper does not switch', it indicates the flue gas damper contact (E1) is either closing or not opening on demand, output A1 is not switching the flue gas damper, or the flue gas damper is blocked. Check the cables, plug-in connections, and power supply of the flue gas damper. Verify the flue gas damper function and feedback. Also, check settings HG13 and HG14. Then, press the reset button.
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xjohnsonAug 30, 2025
How to resolve Flow monitoring (check sensor) on a Wolf CGS-2-14/120L?
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  Julie BrownAug 30, 2025
  If your Wolf Boiler displays 'Flow monitoring (check sensor)', it could be due to the return temperature being greater than the eHLSC temperature + 12 K, the return temperature being greater than the boiler sensor + 12 K, system pressure being too low, air in the heating circuit, or a faulty/low output pump. Check the system pressure and vent the system. Increase the minimum pump speed for flow monitoring. Check if the pump is running; if not, check its cables and plugs, and replace the pump if necessary.
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Michael HarrisAug 29, 2025
What causes a 'Boiler sensor faulty' error on a Wolf CGS-2-14/120L?
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  John OlsonAug 29, 2025
  If your Wolf Boiler displays 'Boiler sensor faulty', it could be due to excess temperature in the flow (Boiler sensor > 100 °C), a short circuit or lead break in the boiler sensor or sensor lead, or a pump issue. Check if the pump is running; if not, check its cables and plugs and replace the pump if necessary. For excess flow temperature, increase the minimum pump speed. Inspect the leads and plug-in connections of the boiler sensor, replacing it if necessary. Finally, press the reset button.
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Connie AliAug 28, 2025
How to troubleshoot Flue gas TL, excess temperature on a Wolf Boiler?
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  matthewmillerAug 29, 2025
  If your Wolf Boiler displays 'Flue gas TL, excess temperature', the flue gas temperature has exceeded the flue gas temperature limiter's shutdown temperature of 110 °C. This could be due to issues with the combustion chamber module, the combustion chamber itself, or the flue gas temperature monitor. Check the installation position of the combustion chamber module. If the combustion chamber is heavily contaminated, perform maintenance or replace it. Inspect the leads and plug-in connections of the flue gas temperature monitor, replacing the temperature limiter if necessary.
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Julie TaylorAug 28, 2025
Why does my Wolf Boiler show TC excess temp?
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  Laura DuarteAug 28, 2025
  If your Wolf Boiler displays 'TC excess temp', it means one of the temperature sensors (eHLSC1 or eHLSC2) has exceeded the temperature monitor's limit of 102 °C, or there's an issue with system pressure, air in the heating circuit, or the pump. Check the system pressure and vent the heating circuit. Inspect the leads and plug-in connections of the temperature monitor in the flow, replacing it if the electrical connection is OK but it's not functioning. Check if the pump is running, and if not, check its cables and plugs, replacing the pump if necessary. Finally, press the reset button.
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Martin MartinAug 27, 2025
What to do if TL excess temp appears on my Wolf CGS-2-14/120L?
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  Roger AllenAug 27, 2025
  If your Wolf Boiler shows 'TL excess temp', it indicates that a temperature sensor (eHLSC1 or eHLSC2) on the combustion chamber has exceeded the high limit safety cut-out limit (108 °C), or there's an issue with system pressure, air in the heating circuit, or the pump. Check the system pressure and vent the heating circuit. Inspect the cables and plugs of the temperature limiter (eHLSC) and replace it if faulty. Check if the pump is running, and if not, check its cables and plugs, replacing the pump if necessary. Finally, press the reset button.
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Lisa ThomasAug 27, 2025
How to fix HLSC excess temp on Wolf CGS-2-14/120L Boiler?
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  Jose BrownAug 27, 2025
  If your Wolf Boiler displays 'HLSC excess temp', it means the high limit safety cut-out has activated because the temperature at the heat exchanger cover exceeded 185 °C or the combustion chamber is contaminated. Check the cables and plugs of the high limit safety cut-out; if the electrical connection is OK but it's not functioning, replace it. If the combustion chamber is contaminated, clean or replace it. Additionally, check the heating circuit pump, vent the system, and then press the reset button.
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Mary MoralesAug 26, 2025
Why does my Wolf CGS-2-14/120L Boiler show flame failure?
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  petersonjamieAug 26, 2025
  If the Wolf Boiler displays 'Flame failure', first verify the gas type setting on both the gas valve and the AM/BM. Then, check the gas supply pressure. Inspect the condition of the ionization electrode, cleaning or replacing it if necessary, and ensure the gap and position are correct. Also, check the flue path, both inside and outside the appliance, for any blockages or leaks. If flue gas recirculation is occurring, address the cause. Finally, press the reset button.
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csullivanAug 25, 2025
What to do if no flame is established in my Wolf CGS-2-14/120L Boiler?
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  sbishopAug 26, 2025
  If your Wolf Boiler shows 'No flame established', check the gas supply to ensure the gas train and gas valve are open. Inspect the position and condition of the ionization electrode, adjusting or replacing it if needed. Also, check the ignition electrode's position and the ignition transformer's wiring. If HG44 curves are offset, reset them to the standard value. If the gas valve doesn't open, check its cables and plugs, and replace the valve if it's faulty. After any replacements, press the reset button and reset HG44 to the standard value.
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eromeroAug 25, 2025
What does Reset mean on my Wolf CGS-2-14/120L?
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  Christopher LeeAug 25, 2025
  If your Wolf Boiler displays 'Reset', it means the reset button has been pressed too many times. Switch the mains supply OFF and then ON, and immediately acknowledge the fault message. If the fault persists, no answer.

Wolf CGS-2-14/120L Specifications

General

Model	CGS-2-14/120L
Max Operating Pressure	3 bar
Fuel Type	Natural Gas / Propane
DHW Flow Rate	14.2 l/min
Energy efficiency class DHW	B
Water tank capacity	120 liters
Category	Condensing Gas Boiler with Storage Tank
Type	Condensing Boiler with Tank