Heating System Annual Maintenance by FR&G - Huntingtown

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Heat Pump Maintenance

At Fixed Right & Guaranteed, we make sure that your unit is running to peak efficiency.  Our technicians perform the following for a heat pump tune up:


  • Inspect ducts, filters, blower, and indoor coil for dirt and other obstructions
  • Diagnose and seal duct leakage
  • Verify adequate airflow by measurement
  • Verify correct refrigerant charge by measurement
  • Check for refrigerant leaks
  • Inspect electric terminals, and, if necessary, clean and tighten connections, and apply nonconductive coating
  • Lubricate motors, and inspect belts for tightness and wear
  • Verify correct electric control, making sure that heating is locked out when the thermostat calls for cooling and vice versa
  • Verify correct thermostat operation.

Oil Boiler Maintenance

The certified Fixed Right & Guaranteed technician performs the following tasks to get your oil boiler system running smoothly:


1 Check for significant corrosion on the boiler’s outer sheetmetal, its cast-iron sections, flue, electrical controls, nearby piping and components.  

2 Check above-ground oil tanks and lines for leakage. 

3 The boiler should have an oil shutoff valve positioned before the fuel filter cartridge. Install one if needed, preferably one that cuts off fuel flow in the event of a fire. Replace compression fittings on oil lines with flare fittings.
4 Make sure the burner’s air inlets and shutters are free of lint and dust. 5 Open the boiler top or look through the inspection port to check for cracks in the firebox or on the target wall (the fire clay box or wall that the burner fires into or against).
6 Remove the burner electrode assembly. Check the electrodes and their porcelains. Adjust the electrode spacing.
7 Check the transformer bushings, springs and ignition wiring.
8 Check the burner motor shaft for end play. Lubricate the burner motor and circulators if they are not permanently lubricated types.
9 Check the draft regulator for free movement.  


1 Remove the boiler flue sections. Brush and vacuum them clean.
2 Brush clean the surfaces of the boiler sections.
3 Clean the cadmium-sulfide flame sensor (the cad-cell eye), check its alignment and check its wires.
4 Clean the burner air tube.


1 Remove the limit control housing and check the temperature settings of the high-limit and low-limit controls.
2 Fire the boiler and check gauge readings for correct boiler water temperature and pressure. Adjust the boiler controls to produce correct gauge readings.
3 Measure flue gas temperature and use a combustion gas analyzer to read the percentage of combustion chemicals (carbon dioxide and carbon monoxide). Adjust the burner if needed.
4 Check the burner’s flame shape. Again, adjust the burner to correct if necessary.
5 Check the pressure and the oxygen content of the combustion gas over the fire.
6 Check the oil pump for leaks and perform a pressure test.
7 Flip the boiler’s Emergency Switch while the boiler is firing to check that it cuts off the boiler.
8 Adjust wall thermostat settings to check that the boiler responds to them.

1 Replace the fuel filter.
2 Replace the burner nozzle. 

Gas Furnace Maintenance

Your certified Fixed Right & Guaranteed technician performs the following steps for gas furnace maintenance:

 1. Check for proper pressure on gas valve.
2. Check for proper millivolt output of thermocouple.
3. Tighten and clean thermocouple connections.
4. Check setting of pilot (if the furnace doesn’t have electronic ignition). Flame should be high enough to generate current through thermocouple.
5. Tighten all gas connections. Check for leaks.
6. Thoroughly check heat exchanger for cracks and holes caused by high temperatures.
7. Remove and clean burners, reset, and adjust air shutters for a proper flame.
8. Check burner and pilot alignment.
9. Clean blower blades for full capacity. An extremely dirty fan may have to be dismounted and its blades washed with detergent in hot water. If it is washed, the fan should be coated with light oil before being replaced.
10. Oil motor bearings.
11. Check fan belt tension and wear.
12. Check fan and limit switch operation and settings.
13. Check flue for leaks and proper connection to outside vents.
14. Check thermostat location, operation, anticipation setting.
15. Check thermostat wiring for tight, clean connections. 

Contact Fixed Right & Guaranteed - Huntingtown

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Let Us Know What You Need

Fixed Right & Guaranteed, LLC is here to assist with your  heating, cooling and air quality needs.  Please fill out the form - assistance is simply a click away!  

Fixed Right & Guaranteed, LLC

4020 Old Town Rd. #12 Huntingtown, MD 20639

(410) 414-FAST

Office Hours


Monday - Friday: 7am - 7pm

Saturday: 7am-1pm

Emergency Calls Available