Mon - Fri: 7:30AM - 5:00PM
24/7 Emergency Service
24/7 Emergency Service
Allenville
Charleston
Mon - Fri: 7:30AM - 5:00PM
24/7 Emergency Service
24/7 Emergency Service
Geothermal System Not Heating? Troubleshooting Tips
Before scheduling a repair, it’s smart to run through a few quick checks that might get your geothermal system working again. Many issues have simple solutions you can handle yourself, saving you time and avoiding an unnecessary service bill. Try these steps if you’re in Mattoon, Charleston, Effingham, or anywhere across East Central Illinois.
1. Check thermostat settings
Make sure your thermostat is set higher than the current room temperature. The system mode should be on HEAT (or AUTO for automatic cycling). For the fan, choose ON for constant circulation or AUTO to run only when the system operates. Raise the thermostat to its highest setting to see if the geothermal unit starts.
2. Inspect the air filter
A clogged air filter can reduce airflow and prevent warm air from circulating. Replace or clean the filter if it’s dirty.
3. Make sure registers and vents are open
Walk through your home to ensure all supply registers are open and free from blockages like rugs, curtains, or furniture.
4. Verify the power disconnects
Both the indoor and outdoor components of your geothermal system have nearby power switches. Make sure each one is turned on.
5. Check your breaker panel
Inspect the electrical panel and verify that the breakers for both indoor and outdoor units are ON. Reset any that may have tripped.
If your geothermal system still isn’t heating after these steps, it’s time to call the experts. At Atteberry & Marshall, we provide trusted geothermal heating repair and service for homeowners in Mattoon, Charleston, Effingham, and throughout East Central Illinois.
Request Service
Allenville
Serving Residential & Commercial Customers
Within 50 miles of Allenville
Charleston
Browse Our Website
