Common problems
Common heating problems
"A good name is more desirable than great riches; to be esteemed is better than silver or gold".
Real Reviews from Happy HVAC Customers
Hear what our residential and commercial clients say about MR HVAC’s reliable heating, cooling, and HVAC-R services.
We diagnose heating problems the right way — inspect, measure, verify — so you get fixes that hold.
Inspect (Visual & Initial Check)
Airflow: Check/replace dirty filters, inspect evaporator/condenser coils for dirt, look for debris around outdoor units, and examine ductwork for damage or leaks.
Components: Inspect electrical connections, wiring, safety controls (limit switches), condensate pans/lines, and the overall condition of the furnace, compressor, and fan.
Measure (Quantitative Data)
Electrical: Measure amp draw for motors, check voltage, and test continuity.
Performance: Measure temperature rise (furnace) or temperature drop (AC) across coils, check refrigerant pressures (superheat/subcooling).
Airflow: Measure static pressure and air velocity (CFM) to assess duct system performance.
Verify (Confirming Operation & Safety)
Safety: Confirm safety switches (high/low pressure, limit), gas connections for leaks, and proper exhaust venting.
Controls: Test thermostat operation, control board, and proper cycling of components.
Performance: Ensure the system meets designed specifications (e.g., proper heating/cooling output, humidity control) and document findings for the homeowner.
We provide on-site Air Conditioning Repair Services in Harrison, Arkansas and surrounding North Arkansas and South Missouri communities.
