Ravenheat
Underheating / Poor Heat Output
Furnace runs but produces no heat or insufficient heat to the property.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Incorrect gas rate, Partially blocked primary heat exchanger, Sludged heating system, Faulty circulation pump or low flow
How to Fix / Troubleshooting
Safety: Gas rate and combustion must only be adjusted by a qualified engineer. Users should not remove combustion covers.
User checks:
- Ensure all radiators or warm air outlets are open and not obstructed.
- Check the room thermostat setting and ensure it is not located in an unusually warm area.
- Verify that filters in any ducted system are clean.
Technician checks:
- Measure gas input and adjust the gas valve to Ravenheat specifications.
- Inspect and clean the primary heat exchanger.
- Check system for sludge and consider power-flushing.
- Verify pump performance and system balancing.
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Repair Difficulty
Hard
4/5
Required Part
Primary Heat Exchanger
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