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

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

Questions and Answers:

A
Adam WebsterSep 10, 2025
How to troubleshoot GLV actuators error on a Wolf CGS-2-14/120L?
- J
  Jason MooneySep 10, 2025
  If your Wolf Boiler displays 'GLV actuators', it could be due to flue gas recirculation, an incorrect gas type setting, an incorrect gas restrictor, a faulty gas valve, or a faulty fan. Check the flue path inside and outside the appliance for leaks or blockages, and check for wind effect. Check the gas type setting on the gas valve and the AM/BM-2. Remove the gas valve retainer and check that the correct gas restrictor is fitted. Check the gas valve's cables, plugs, power supply, and switching, replacing valves as necessary. Check the fan for bearing damage, cables, plug-in connections, power supply, and switching, and replace the fan if faulty.
E
eromeroAug 25, 2025
What does Reset mean on my Wolf CGS-2-14/120L?
- C
  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.
C
csullivanAug 25, 2025
What to do if no flame is established in my Wolf CGS-2-14/120L Boiler?
- S
  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.
M
Mary MoralesAug 26, 2025
Why does my Wolf CGS-2-14/120L Boiler show flame failure?
- P
  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.
I
ihollowaySep 12, 2025
What causes 'Calibration deviation' on my Wolf CGS-2-14/120L Boiler?
- R
  rachel31Sep 12, 2025
  If your Wolf Boiler displays 'Calibration deviation', it could be due to a corroded or bent ionization electrode, soot or dirt particles in the intake air, flue gas recirculation, or a wiring error on HCM-2 (low voltage side). If there are soot or dirt particles in the intake air, clean the intake air path. Inspect the ionization electrode for electrical connections and its condition, cleaning or replacing it if necessary, and adjust its gap and position. Carry out 100 % calibration. Replace the boiler coding card. Check the electrical connection of the HCM-2 low voltage side.
J
James JensenSep 4, 2025
What does 'Return sensor faulty' mean on my Wolf Boiler?
- K
  kgrantSep 4, 2025
  If your Wolf Boiler displays 'Return sensor faulty', it indicates that the return sensor or its sensor lead has a short circuit or lead break, or the return sensor temperature is above 100 °C. Check the leads and plug-in connections of the return sensor, and if they are OK but it's not functioning, replace the return sensor. Finally, press the reset button.
M
marygarzaSep 5, 2025
How do I troubleshoot a 'Header sensor faulty' error on my Wolf Boiler?
- J
  Joel RiceSep 5, 2025
  If your Wolf Boiler displays 'Header sensor faulty', it means the header sensor or its sensor lead has a short circuit or lead break. Check the leads and plug-in connections of the header sensor. If they are OK but it's not functioning, replace the sensor and then press the reset button.
K
Katherine OrtizAug 31, 2025
What does 'eHLSC sensor faulty' mean on my Wolf Boiler?
- J
  Joseph RobinsonAug 31, 2025
  If your Wolf Boiler displays 'eHLSC sensor faulty', it means the temperature sensor eHLSC1 or eHLSC2 on the combustion chamber or the sensor lead has a short circuit or lead break. Check the leads and plug-in connections of the eHLSC on the combustion chamber. If the electrical connection is OK but it's not functioning, replace the eHLSC.
X
xjohnsonAug 30, 2025
How to resolve Flow monitoring (check sensor) on a Wolf CGS-2-14/120L?
- J
  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.
Y
yateskathleenAug 30, 2025
Why does the flue gas damper not switch on my Wolf CGS-2-14/120L?
- D
  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.

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