Wolf CGS-2-14/120L - User Manual

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.
K
Kathryn BryantSep 23, 2025
What does 'HC pressure' mean on my Wolf CGS-2-14/120L?
- E
  Eric CookSep 23, 2025
  If your Wolf Boiler displays 'HC pressure', it could be due to system pressure being too low, a faulty supply line pressure sensor, or a faulty pressure sensor. Check the system pressure and if the supply line is faulty. Inspect the leads and plug-in connections of the pressure sensor, replacing it if necessary. 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.
M
Mary RyanSep 15, 2025
What does 'Incorrect BCC' mean on my Wolf Boiler?
- C
  Christina RamseySep 16, 2025
  If your Wolf Boiler displays 'Incorrect BCC', it means the boiler coding card is incompatible with the GCB-e PCB or the BCC code is incorrect. Use the ON/OFF switch. Ensure the boiler coding card is compatible. Enter the BCC code from the type plate correctly. Insert the correct boiler coding card. Press the reset button and enter contractor code 1111.
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.
H
Henry GillSep 23, 2025
What does 'External fault at programmable input E1' mean on my Wolf CGS-2-14/120L Boiler?
- P
  Patrick JonesSep 23, 2025
  If your Wolf Boiler displays 'External fault at programmable input E1', it means an external fault has been reported at programmable input E1 because the fault message contact at E1 has opened. Rectify the external fault and check the lead. Acknowledge the fault message.
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.

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