1. Prepare the System:
   Begin by running the heat pump at high speed for 5-10 minutes to stabilize temperature readings. Ensure the desuperheater (if present) is off, and confirm that all zone dampers are open for proper airflow during diagnostics.

2. Check Water Flow Rate:
   Use a pressure gauge to measure the water pressure going into and out of the system. Subtract the lower pressure from the higher to get the Delta P. Consult the manufacturer's guide to convert Delta P to gallons per minute (GPM), ensuring proper water flow.

3. Measure Temperatures:
   Insert a temperature probe to determine the water temperature entering and exiting the unit. Subtract the values to find Delta T, comparing it with manufacturer specifications for accuracy.

4. Heat Extraction/Rejection Calculation:
   For heat of extraction (winter) or rejection (summer), multiply Delta T by the GPM and fluid factor. The calculated BTUs should match manufacturer guidelines to ensure optimal system performance.

5. Inspect Coils and Filters:
   Check the coil for dirt buildup and clean it using a non-acidic cleaner. Replace air filters regularly, as clogged filters reduce efficiency.

6. Check Volts and Amps:
   Measure electrical performance and compare with the manufacturer’s range, ensuring the system isn’t overloading or underperforming.

Routine service ensures your geothermal system operates efficiently, prolongs its lifespan, and reduces the likelihood of costly repairs. Always hire trained technicians from Anderson Air to follow these steps thoroughly.