California's leading  provider of HVAC heating air conditioning and climate control - RASSAC's Logo
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RASSAC Tag Line - "Your Comfort is Our Business" for HVAC Services
RASSAC's contact phone number "818-957-2970" to inquire about Heating, Ventilation and Air Conditioning(HVAC) Services in California
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Service Department
The service department provides around-the-clock services for hundreds of planned maintenance customers, in addition to on-call customers, throughout the State of California. Our service technicians are trained in service, support and diagnosis for all types of HVAC, refrigeration and temperature controls systems, and are backed up by our Customer Assurance Departments. Training updates for service technicians are provided on a continuous basis.

Our service technicians are not only trained and skilled at trouble shooting problems, but are also capable of putting equipment back to original standards. See before and after.
Before After
Preventive Maintenance
Best Reason for an Equipment Checkup - Visit our "Did you Know?" section to learn more
Do you know how important your refrigerant charge is! According to studies, by having the correct refrigerant charge and airflow through the evaporator coil, customers can save as much as 31% on their annual energy bill. This could also improve your comfort level in your home or business. Studies show that 60% to 80% of units tested don’t have the proper refrigerant charge. It’s very common to find your system under charged as much as 10% to 30%. A 12.000 SEER UNIT, THAT IS UNDER CHARGED BY 20%, REALLY ONLY DELIVERS 9.500 SEER. You may not be able to tell if your system is low on refrigerant without a qualified technician checking for proper performance.
Checking your duct connections

A 15% air leakage from a loose duct can cause as much as 50% decreases in efficiency. Air leakage can suck hot air into your cooling system. Just imagine if the equipment were in the attic with 120 to 140 degree temperature or outside on a 100-degree day. The importance of checking for air leaks as part of your equipment checkup is key.
Cut your operating cost
Ensure longevity of your equipment with our preventative maintenance program. You’ll eliminate 80% of heating/air conditioning problems with our service, which would includes the following assessment points:
  • Refrigerant Charge
  • Lubrication of motors and pulleys
  • Condition of belts and pulleys
  • Tower Cleanliness
  • Chemical Levels
  • Pressure Controls
  • Safety Devices
  • Condition of Filters
  • Likelihood of leaks
  • Cleanliness of Condensers
  • Thermostats and motor starters
  • Water pumps and float valve controls
  • Speed and rotation of fans
  • Condensate drip pans and drains
  • Pilot lights
  • Fan limit controls
  • As well as any other individual maintenance your own system might require