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Troubleshooting tips
Power failure
If you have a power failure, the unit's auto-restart feature will resume
operation in the selected mode prior to the power failure.
Won't cool?
If yourair conditioner operates,but won’t cool; check tosee ifthe controls
are properly set. Check the filter and clean thoroughly if needed. Check
to see if the vent door is closed. Check to see if the chassis seal gasket is
installed (refer to installation instructions).
Won't run?
Make sure the power cord is pluggedin completely. Check for a bad fuse,
tripped breaker or tripped LCDI Device. Refer to page 3 for LCDI reset
instructions and to con¿rm proper fuse size.
For QuietMaster Programmable models only:
Youcanresetthecircuitboardbypressingthe“Moneysaver”buttonand
the “Check Filter” button at the same time. The LED (small red light) for
the Check Filter will begin blinking.Once this occurs, turn the unit off by
pressingthe On/Offbu
tton once andthenunplugthe unit.Finally,plugthe
unitbackinandturnitonbypressingtheOn/Off button once. All settings
revert back to the factory default settings.
This is a warm weather appliance
Your airconditioner isdesigned tocool inwarm weather when the outside
temperature is above 60°F (16°C) and below 115°F (46°C), so it won't
cool a room if it is already cool outside.
If you want to cool a room in the
spring or fall, touch
Fan Only and set the Fresh Air/Exhaust control to
Fresh Air. This will bring in a supply of cooler outside air.
Condensation is normal
Air conditionersactually pumptheheat andhumidity fromyour room tothe
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ofthe waterto keeptheoutsidecoilcool.If there isexcessive humidity,there
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Frosting
This usually occurs because of insufficient airflow across the coils, adirty
filter,cool dampweather, orall ofthese.Set unitto FanOnly and the frost
will disappear. Setting the thermostat a little warmer will probably prevent
the frosting from recurring.
Noises
All air conditioners make some noise. Friedrich QuietMaster
®
units are
designed to operate as quietly as possible. An air conditioner mounted in
a wall is quieter than one mounted in a window. It is important to ensure
that the chassis seal gasket is properly installed (r
efer to installation
instructions).
Cleaning your air conditioner
The decorative front andthe cabinet can be cleaned with warm waterand
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attachment if itappears tobe dirty.The outdoor coilcanbegentlysprayed
with a hose if you can get to it. If not, you might call your dealer for a
more thorough cleaning when needed. The air ¿lter should be inspected
weekly and cleaned if needed by vacuumin
g with a dustattachment or by
cleaning in the sink using warm water and a mild dishwashing detergent.
Dry the ¿lter thoroughly before reinstalling. Use caution– the coil surface
can be sharp.
Heat pumps operate differently
If your unit is a "Y", or heat pump model, there are some things that you
will want to be aware of.
Somefunctionsofaheatpumpdifferfromyourunitwhenitisusedfor
heating:
1. Itisnormalforicetoformontheoutdoorcoiloftheheatpump.
Moisture in the outside
air,passingoverthecoilwhenverycold,
will form ice.
2. Ifthe outdoor temperaturedrops below37°F(3°C),yourheat pump
ehtnehW.taehecnat sis ercirtceleehtnonrutyllacitamotualliw
temperature rises to 40°F (4°C), the compressor will resume the
heat pump operation. If your unit is a 115 volt model (YS09), it is
designed for use in warmer climates and has no electrical heat
feature, and will not provide adequate heat below 37°F (3°C).
Available Accessories
DC Drain Kit - Part No. 01900235
Insome installations, excess condensatewatercausedbyextremely humid
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over an entryway. MODEL DC-2 DRAIN KIT (Part No. 01900-235) can be
installed to drain the excess condensate.
Window Installation Kits
TwinTempor Heat/Cool room airconditioners are shipped without window
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ereht,wodniwanidetnuomgnieberastinuesehtnehwse cnats niesoht
are window installation kits available. Dependinguponthe chassis sizefor
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WIKS for Small Chassis (ES, YS models)
WIKM for Medium Chassis (EM, YM models)
WIKL for Large Chassis (EL, YL models)
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Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
WARNING