Using what is called a fin comb, straighten any bent fins on your unit. Bent fins create inefficient airflow and are harder to clean. An HVAC Fin Comb can be found online or at a home improvement store. Do NOT use knives, razor blades, flathead screwdrivers, or any other sharp object. Either use a fin comb or call your contact your local HVAC technician.
Replace the outer grille and top grille (if it was lifted). Turn the power back on to the unit. Adjust the thermostat if needed.
Recap of Steps:
Make sure the unit has been turned off at the source (shut-off switch or breaker box)
Clear the area around the condenser (you may want to put on gloves for this)
Remove the outer heat pump cover (you may need a screwdriver for this)
Remove the top grille and fan (if you can)
Wipe down the condenser coils with condenser coil cleaner or a solution of soap and water
Use a garden hose to wash it from the outside (hit the fins head on, not at an angle)
Use a fin comb to straighten out any bent consider fins
Put the top grille and heat pump cover back into place
Turn power back on and enjoy the fruits of your labor!
Facts about Dirty Coils
Condenser coils must stay clean to ensure energy efficiency, indoor comfort, and low energy bills. Dirty coils put unnecessary strain on your HVAC system. In fact, according to a 2010 Southern California Edison (SCE) Report, dirty condenser coils degrade cooling capacity up to 40% and reduce energy efficiency by up to 60%.
Benefits of clean condenser coils:
Maximum heat transfer
Energy efficiency
Indoor comfort
System longevity
Indoor air quality
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