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Heating Pre Season Tune Up
Now Only $79
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Thermostat - Check
heat anticipator and ensure that it is properly set.
Adjust anticipators if needed. If possible, also check
or calibrate temperature readings. |
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Air Filter - Replace old air filter with a new filter. Look
for any debris that could be restricting airflow in return. Try to inspect the face of
indoor coil. |
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Safety Controls
- Check to make sure door safety switch is
operating correctly. Also check on all other auxiliary safety devices. |
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Indoor Coil - Check indoor coil to make sure it is not
restricting airflow. Also check area for possible leaks that may decrease systems
performance. |
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Blower Motor - Check motor amperage and compare it to motor
ratings. Oil motor if needed. Check to ensure of proper motor speed. |
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Drafting
- Ensure of proper flame. Look for signs of rust or
blackage. If these signs exist then look to see if the flue needs to be cleaned or
replaced. |
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Run Capacitor
- Check microfarads
on cap. Recommend replacement if it is not within 10%. Check for oil leaks or voltage
drop. Replace if bad. |
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Limit Switches & Fan Control -
Check fan control for proper cut-in.
Disconnect power to blower and test upper limit switch. |
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Pilot/Ignition System - Check for
flame quality and roll out. Look for hard ignition or any signs of delayed ignition. Check
warm up time. |
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ELECTRIC HEAT |
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Thermocouple - Ensure the thermocouple is in its proper position. Look for any
deterioration or crystallization that may be occurring. |
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Heat Strips -
Check all sequencers, fan control, safety
controls, limit switches, and element connections. Checks all amps through system. |
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Burners
- Check for a solid blue flame. If orange or yellow flame appears
check for cracked heat exchanger, dirty burners, or poor exhaust flow in flue. |
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Heat Anticipator - Ensure thermostat is properly set. If not,
set to proper amperage. Wrong settings can result in system short cycling. |
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Heat Exchanger
- Examine heat exchanger for any cracks or
signs of fatigue. Shut down unit if you suspect that there may be a problem. |
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Crank Case Heater - Use amprobe to check that the crank case
heater is functioning. If it is not, oil will begin to foam and reduce compressor
viscosity. |
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Gas Lines - Inspect all gas lines for possible leaks. Use
soap and bubbles and check commonly known areas where leaks often do occur. |
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Defrost Controls
- Try to send unit into defrost to check its
function (Disconnect motor). Inform homeowner of what they can expect during defrost. |
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Temperature Rise - Determine change in temperature between supply
and return air. Check this with the allowable rise listed on the units rating plate. |
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Split Temperature -
Measure split temp to ensure that unit is
working efficiently. A poor split temp could indicate a bad heat strip, dirty filter, or
blocked coil. |
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