Daikin furnace runs but gas consumption seems unusually high and efficiency appears poor.
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.
Possible Causes
How to Fix / Troubleshooting
Safety: Combustion adjustments and heat exchanger cleaning must be done by qualified personnel.
Steps to check (homeowner level):
- Filter and airflow: Replace the filter and ensure all registers and returns are open to maximize heat transfer.
- Thermostat settings: Avoid large temperature setbacks that cause long recovery times and higher gas use.
A technician should perform combustion analysis, check gas pressure, and inspect/clean the Daikin heat exchanger to restore efficiency.
Repair Difficulty
Required Part
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