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Courtney ReedAug 29, 2025
How to fix CRC error of default values in my Wolf Boiler?
- OosbornebrandonAug 29, 2025
If your Wolf Boiler shows a CRC error with default values, replace the control unit PCB.
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How to fix CRC error of default values in my Wolf Boiler?
If your Wolf Boiler shows a CRC error with default values, replace the control unit PCB.
How to fix TBV excess temperature in Wolf Boiler?
If the flow temperature has exceeded the limit for the TBV shutdown temperature, or if the heat exchanger is extremely dirty, or if the water pressure switch switches off at a pressure less than 1.0 bar, you should: * Check the system pressure. * Check the heating circuit pump. * Vent the system. * Press the reset button. * Clean the heat exchanger. * Check the TB combustion chamber. * Increase the system pressure. * Check the dirt filter.
How to fix CRC fault in my Wolf gas condensing Boiler?
If your Wolf Boiler shows a CRC fault for the gas condensing boiler, switch the power supply off and on. If the issue persists, replace the controller PCB.
Why does my Wolf Boiler show a faulty flow sensor?
The sensor for the flow temperature or the cable may be faulty, or the gas pressure may be less than the selected value at the gas governor (only displayed after 15 min). To resolve this, check the lead, flow sensor, gas pressure, and gas governor (accessory).
What to do if my Wolf Boiler indicates TBA excess temperature?
If there is overpressure in the flue gas system, clean the heat exchanger, check the flue gas system, and check the ventilation air.
What to do if my Wolf Boiler's cylinder sensor is faulty?
If the DHW temperature sensor or lead is faulty, check the sensor and the lead.
What to do if my Wolf Boiler shows a CRC fault, BCC?
If there is a faulty boiler coding card, replace it.
What to do if my Wolf Boiler shows a faulty flow sensor or low gas pressure?
If your Wolf Boiler has a faulty flow sensor or indicates that the gas pressure is too low, check the cable and flow sensor. Also, check the gas pressure and gas governor.
How to fix ionisation current fluctuation in my Wolf Boiler?
If your Wolf Boiler is experiencing ionisation current fluctuation, clean the trap, check the flue system and ventilation air, and check the monitoring electrode.
What to do if my Wolf CGB-100 Boiler shows TBA excess temperature and excess pressure in the flue system?
If your Wolf Boiler displays TBA excess temperature or excess pressure in the flue system, clean the heat exchanger, check the flue system, and check the ventilation air.
Lists other relevant documents for the boiler and accessories.
Instructions on keeping manuals and documents safe and accessible.
Guidelines for informing the system user about operation and maintenance.
Specifies which boiler models these instructions apply to.
Notification requirements after commissioning.
Guidelines for environmentally responsible disposal of the boiler and parts.
Actions to take if gas is detected.
Warnings about electrical hazards.
Actions to take if flue gas is detected.
Warning about hot water and precautions.
Warning about hot components and precautions.
Explains warning symbols used in the manual.
Warning about high water pressure and precautions.
Safety procedures for working on the system.
Recommendations for regular inspection and maintenance.
Lists local regulations for installation and operation.
Lists general regulations and guidelines for installation.
Lists specific UK and other regulations and British Standards for installation.
Lists standards and directives applicable to the CGB boiler.
Describes the function of the ON/OFF switch.
Explains how to reset the system.
Explains the meaning of different illuminated ring indicators.
How to select domestic hot water temperature.
How to select heating water temperature.
Describes operation in winter mode.
Describes operation in summer mode.
Explains how to activate and use emissions test mode.
Explains pump protection in summer mode.
Lists items included in the standard delivery.
Lists required accessories for installation.
Diagram of boiler connections.
Diagram of heating circuit pump assembly.
General siting requirements and clearances.
Instructions for removing and refitting the casing cover.
Steps for mounting the boiler using the suspension bracket.
Recommends and describes the heating circuit connection set.
Details on expansion vessel and safety valve requirements.
Specific requirements for systems without a low loss header.
System pressure and temperature limits.
General requirements for heating water quality and treatment.
Instructions for connecting the condensate drain trap.
How to connect and configure a condensate pump.
Instructions and safety precautions for gas connection.
General instructions and notes for installing air/flue gas routing.
General safety and installation requirements for electrical connection.
Details about the terminal box and its wiring.
Instructions for mains power connection.
Steps for connecting the electrical system.
Instructions for changing the fuse safely.
How to connect the cylinder sensor.
How to connect an external heating circuit pump.
How to connect output A1.
Lists functions assignable to output A1.
General advice for low voltage connections and interference.
How to connect input E1.
Lists functions assignable to input E1.
How to connect digital Wolf control accessories.
How to connect the outside temperature sensor.
Step-by-step guide to filling and venting the heating system.
Instructions for updating the appliance type plate after conversion.
Procedure for checking gas supply pressure.
Checklist for commissioning the boiler.
Advice on energy saving options for the customer.
Procedure for setting the BUS address for cascade modules.
Important notes regarding modifications and frost protection.
How the pump modulates in heating mode.
How the pump operates in DHW mode.
How the pump operates in standby mode.
Limits for heating mode speed settings.
How to adjust output settings using parameters.
Procedure for testing intake air parameters.
Procedure for testing flue gas parameters.
General note on setting the gas/air mixture.
Procedure for adjusting CO2 for upper load.
Procedure for adjusting CO2 for lower load (soft start).
How to check CO2 values with the appliance closed.
Final steps to complete CO2 adjustments.
Diagram showing residual head of the pump.
Diagram showing hydraulic pressure drop.
Graph and table showing sensor resistance vs temperature.
Explanation of heat exchanger protective function.
Information on maximum flow rate.
Table of different flue/air connection types.
Instructions for system cleaning and water treatment.
Lists permissible water treatment methods.
Table detailing water quality requirements based on system volume.
Fields for engineering data related to the system.
Section for recording water fill and top-up data.
Diagrams illustrating various air/flue gas routing configurations.
Table detailing design variants for air/flue gas routing.
Minimum duct sizes for different flue types.
Information on air/flue gas routing in shafts.
General safety and installation notes for flue systems.
How the flue gas temperature limiter functions.
Instructions for connecting the flue gas system.
Method for calculating balanced flue length.
Diagrams showing vertical and concentric balanced flue configurations.
Diagrams for horizontal balanced flues and external wall flues.
Installation of eccentric balanced flues.
Additional information for flat and pitched roof installations.
Connection requirements according to TRGI regulations.
Lists fault codes, causes, and remedies.
Continues the list of fault codes, causes, and remedies.
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