Heat Checkup

Extreme Comfort Air Conditioning and heating Checkup

  • THERMOSTAT – Check for properly set temperatures. Adjust if needed. Calibrate thermostat if possible.
  • AIR FILTER – Clean or replace with customer provided filter. Check for debris that may cause air flow restriction. Try to inspect face of indoor coil.
  • BLOWER MOTOR – Check motor amperage and compare it to motor ratings. Oil motor if needed. Check to ensure proper motor speed.
  • RUN CAPACITOR – Check microfarads. Recommend replacement if not within 10%. Check for oil leaks or voltage drop. Replace if leaking or bad.
  • THERMOCOUPLE – Ensure the thermocouple is in its proper position. Look for signs of deterioration or crystals that may be starting to develop.
  • BURNERS – Check for a solid blue flame. If orange or yellow flame appears, look for cracked heat exchanger, dirty burners or poor exhaust flow.
  • HEAT EXCHANGER – Examine heat exchanger for cracks or signs of stress or fatigue. Shut down unit if you suspect that there may be a problem.
  • GAS LINES – Inspect all gas lines for possible leaks. Use soap and bubbles and check commonly known areas where leaks often do occur.
  • SAFETY CONTROLS – Check door safety switch and sequence of safety operations. Also check on all other auxiliary safety devices.
  • INDOOR COIL – Check if possible to make sure there are no airflow restrictions. Check for leaks that may decrease system performance.
  • DRAFTING – Check to ensure proper flame. Check for rust or blockage. Check operation of draft motor
  • LIMIT SWITCHES & FAN CONTROL – Check tan control for proper cut-in and cut-out. Disconnect the power to blower and test upper limit switch..
  • PILOT / IGNITION SYSTEM – Check for flame quality and roll out. Look for hard ignition or any signs of delayed ignition. Check warm up time.
  • DUCTWORK – Check both the supply and return air ducts at machines connections. Check for separated or collapsed air ducts.
  • HEAT STRIPS – Check sequencers, fan control, safety controls, limit switches and element connections. Check amperages throughout.
  • CRANK CASE HEATER – Use amp probe to ensure the crank case heater is functioning. If it is not. oil may foam and reduce compressor viscosity.
  • DEFROST CONTROLS – Try to send unit into defrost to check its function. Inform occupant of what they can expect during defrost.
  • SPLIT TEMPERATURE – Take split temp to measure efficiency. Poor split temps indicate bad strips, dirty filter or blocked coil.

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