Friedrich FSHW091, Service And Parts Manual

Page: 142 / 171

142 PB
Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting
Cylinder of compressor is blocked Compressor can't operate Repair or replace compressor
Air Conditioner is Leaking
Drain pipe is blocked
Water leaking from indoor unit "Eliminate the foreign objects inside the
drain
pipe"
Drain pipe is broken Water leaking from drain pipe Replace drain pipe
Wrapping is not tight "Water leaking from the pipe connection place
of
indoor unit" Wrap it again and bundle it tightly
Abnormal Sound and vibration
"When turn on or turn off the unit, the panel
and other parts will expand and there's abnor‑
mal
sound"
There's the sound of "PAPA" Normal phenomenon. Abnormal sound will
disappear after a few minutes.
"When turn on or turn off the unit, there's
abnormal sound due
to flow of refrigerant inside air
conditioner" Water‑running sound can be heard Normal phenomenon. Abnormal sound will
disappear after a few minutes.
"Foreign objects inside the indoor
unit or there're parts touching together inside
the indoor unit" There's abnormal sound fro indoor unit "Remove foreign objects. Adjust all parts'
position of indoor unit, tighten screws and stick
damping plaster between connected parts"
"Foreign objects inside the outdoor unit or
there're parts touching
together inside the outdoor unit" There's abnormal sound fro outdoor unit "Remove foreign objects. Adjust all parts' posi‑
tion of outdoor unit, tighten screws and
stick damping plaster between connected
parts"
"Short circuit inside the magnetic
coil" "During heating, the way valve has abnormal
electromagnetic sound" Replace magnetic coil
Abnormal shake of compressor Outdoor unit gives out abnormal sound "Adjust the support foot mat of compressor,
tighten the bolts"
Abnormal sound inside the compressor Abnormal sound inside the compressor "If add too much refrigerant during mainte‑
nance, please reduce refrigerant properly.
Replace
ircumstances."
TROUBLESHOOTING
Troubleshooting for Malfunction without Active Error Code