
Serving Philadelphia, Montgomery, Bucks,
Delaware & Chester Counties Since 1973
Licensed, Registered and Insured
Heating and Plumbing Contractor
Let DiRosato inspect your air conditioning and heating system. Having your HVAC system checked twice a year maintains manufacturer’s warranties and enables you to identify minor problems before they grow into expensive repairs.
| Thermostat Operation | Oil and Test Condenser Motor | ||
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Calculate Operating Efficiency | Inspect Condenser Coil | |
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Measure Air Flow | Oil and Test Indoor Blower Motor | |
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Inspect Ducts | Inspect Evaporative Coil | |
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Check System Disconnect Box | Check Condensation Drain | |
| Test Safety Fuses | Check Return Filter | ||
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Inspect Main Contactor Switch | Check Insulation Tubes & Panels | |
| Check Start Kit & Relays | Test Safety Controls | ||
| Test Run Capacitors UF | Check reversing valve operation | ||
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Check Compressor Operations | Systems efficiency / Split Temp | |
| Check Freon Levels & Pressure | Check high & low voltage connections |