Air Handler Homeowner's Routine Maintenance Recommendations - Daikin FTQ18TAVJUA Operation Manual

AIR HANDLER HOMEOWNER'S ROUTINE MAINTENANCE RECOMMENDATIONS

We strongly recommend a bi-annual maintenance checkup be performed before the heating and cooling seasons begin by a qualified servicer.
REPLACE OR CLEAN FILTER
IMPORTANT NOTE: Never operate unit without a filter installed as dust and lint will build up on internal parts resulting in loss of efficiency,
equipment damage and possible fire.
An indoor air filter must be used with your comfort system. A properly maintained filter will keep the indoor coil of your comfort system clean.
A dirty coil could cause poor operation and/or severe equipment damage.
Your air filter or filters could be located in your furnace, in a blower unit, or in "filter grilles" in your ceiling or walls. The installer of your air
conditioner or heat pump can tell you where your filter(s) are, and how to clean or replace them.
Check your filter(s) at least once a month. When they are dirty, replace or clean as required. Disposable type filters should be replaced.
Reusable type filters may be cleaned.
You may want to ask your dealer about high efficiency filters. High efficiency filters are available in both electronic and non-electronic types.
These filters can do a better job of catching small airborne particles.
MOTORS
Indoor and outdoor fan motors are permanently lubricated and do not
require additional oiling.
ALUMINUM INDOOR COIL CLEANING
(QUALIFIED SERVICER ONLY)
This unit is equipped with an aluminum tube evaporator coil. The safest
way to clean the evaporator coil is to simply flush the coil with water. This
cleaning practice remains as the recommended cleaning method for both copper tube and aluminum tube residential evaporator coils.
It has been determined that many coil cleaners and drain pan tablets contain corrosive chemicals that can be harmful to aluminum tube and
fin evaporator coils. Even a one-time application of these corrosive chemicals can cause premature aluminum evaporator coil failure. Any
cleaners that contain corrosive chemicals including, but not limited to, chlorine and hydroxides, should not be used.
An alternate cleaning method is to use one of the products listed in TP-109* to clean the coils. The cleaners listed are the only agents deemed
safe and approved for use to clean round tube aluminum coils. TP-109 is also available on the web site in Partner Link > Service Toolkit.
NOTE: Ensure coils are rinsed well after use of any chemical cleaners.
BEFORE YOU CALL YOUR SERVICER
• Check the controller to confirm that it is properly set.
• Wait 15 minutes. Some devices in the outdoor unit or in programmable
controllers will prevent compressor operation for awhile, and then
reset automatically. Also, some power companies will install devices
which shut off air conditioners for several minutes on hot days. If you
wait several minutes, the unit may begin operation on its own.
• Check the electrical panel for tripped circuit breakers or failed fuses.
Reset the circuit breakers or replace fuses as necessary.
• Check the disconnect switch near the indoor furnace or blower to
confirm that it is closed.
• Check for obstructions on the outdoor unit . Confirm that it has not been covered on the sides or the top. Remove any obstruction that can
be safely removed. If the unit is covered with dirt or debris, call a qualified servicer to clean it.
• Check for blockage of the indoor air inlets and outlets. Confirm that they are open and have not been blocked by objects (rugs, curtains or
furniture).
• Check the filter. If it is dirty, clean or replace it.
• Listen for any unusual noise(s), other than normal operating noise, that might be coming from the outdoor unit. If you hear unusual
noise(s) coming from the unit, call a qualified servicer.
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