Heat Pumps Are Different In The Way They Operate; Troubleshooting Tips - Friedrich Twintemp YS13 Guide D'utilisation

Troubleshooting tips

Won't cool?
If your air conditioner operates, but won't cool; check to
see if the controls are properly set. Check the fi lter 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 plugged in all the way. Check
for a bad fuse, tripped breaker or tripped LCDI Device.
Refer to page 3 for LCDI reset instructions and to confi rm
proper fuse size.
This is a warm weather appliance
Your air conditioner is designed to cool in warm 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 winter, set
the unit to Fan Only and set the Fresh Air/Exhaust control
to Fresh Air. This will bring in a supply of outside air.
Condensation is normal
Air conditioners actually pump heat and humidity from
your room to the outside air. Hu mid i ty be comes water,
and your air conditioner will use most of the water to keep
the outside coil cool. If there is excessive humidity, there
may be excess water that will drip outside. This is normal
op er a tion.

Heat pumps are different in the way they operate

If your unit is a "Y", or heat pump model, there are some
things that you will want to be aware of.
Some functions of a heat pump differ from your unit when
it is used for cooling:
1. It is normal for ice to form on the outdoor coil of the
heat pump. Moisture in the outside air, passing over
the coil when very cold, will form ice.
920-003-10 (4-05)
Frosting
This usually occurs because of insuffi cient airfl ow across
the coils, a dirty fi lter, cool, damp weath er, or all of these.
Set unit to Fan Only and the frost will disappear. Setting
the ther mo stat a little warmer will probably prevent the
frosting from recurring.
Noises
All air conditioners make some noise. We build them to
operate as quietly as possible. An air con di tion er 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 (refer to installation instructions).
Cleaning your air conditioner
The decorative front and the cabinet can be cleaned with
warm water and a mild detergent. The indoor coil can be
vacuumed with a dusting attachment if it appears to be dirty.
The outdoor coil can be gently sprayed 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 fi lter should be
inspected weekly and cleaned if needed by vacuuming with
a dust attachment or by cleaning in the sink using warm
water and a mild dishwashing detergent. Dry thoroughly
before reinstalling the fi lter.
2. If the outdoor coil temperature drops below 20°F (-
7°C), your heat pump will automatically turn on the
electric re sis tance heat. When the temperature rises
to 40°F (4°C) , the compressor will resume the heat
pump operation. If your unit is a 115 volt model (YS09
or YQ07), 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).
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