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Inspect general condition of the system (signs of water, burnt wires & damage) - Inspect surrounding area for combustibles, advise owner and relocate
- Inspect heat exchanger for cracks or holes. If needed recommend a smoke test
- Check for appropriate supply of fresh air into room
- Check and tighten all electrical connections including locknuts and connectors
- Check condition of fan belt if applicable replace if necessary
- Lubricate blower
- Check for accumulation of unusual dirt or rust at the vent hood collection area & flue
- Inspect surrounding area for combustibles, advise owner and relocate
- Check and tighten mounting screws
- Inspect flue / exhaust pipe for pitch, rust, holes, sagging, bad joints and damage
- Check for proper operation of the service switches as well as polarity
- Ring out all safety devices using multi tester / test pressure switches
- Vacuum burners and burner box wire brush if necessary
- Inspect cleanliness of chimney and chimney draw
- Ensure that all flue joints are screwed at three equal points
- Check & vacuum out blower motor & clean squirrel cage
- Test hot surface igniters for resistance using a multi tester (too high may be cracked)
- Change customer supplied filter (If an EAC is present refer customer to manufacturer)
- While unit is running check the overall performance
- Are any unusual sounds or odors present?
- If the unit has self diagnostic capabilities run the test
- Check blower speed
- Check for gas leaks
- Check carbon monoxide levels in room
- Check gas pressure on the burner side of the gas valve
- Ensure the blower access door is secure
- Check the stack temperature
- Perform combustion analysis and compare against manufacturers specifications
- Check air flow at registers and balance as necessary
- Listen carefully to determine if blower shuts off shortly after burner flames are off
Read more about why maintenance is important. Schedule maintenance service online now or call us at 973-227-3599.
