TROUBLESHOOTING
69
CTK04 ADDENDUM
POSSIBLE CAUSE
X IN ANALYSIS GUIDE INDICATE
"POSSIBLE CAUSE"
Com
p di
sc
har
ge t
em
p >
200F
Com
p di
sc
har
ge t
em
p <
105F
Com
p di
sc
har
ge S
H >
70F
Com
p di
sc
har
ge S
H <
20F
Hi
gh pr
es
sur
e >
490ps
i
Hi
gh pr
es
sur
e S
SV
< 270ps
i
Hi
gh pr
es
sur
e LS
V<
270ps
i
LS
V S
C >
12F
LSV SC
<
4
F
Low
pr
es
sur
e <
40ps
i
Reques
ted %
dem
and <
A
ct
ual
%
Reques
ted %
dem
and >
A
ct
ual
%
Repeat
ed s
top/
st
ar
t
W
eak
heat
ing
No s
wi
tc
h heat
ing
No
is
e
Inc
om
pl
et
e def
ros
t oper
at
ion
St
op oper
at
ion
Sw
eat
ing l
iqui
d l
ine
Liquid stop valve does not fully open
X
X
X
X
X
X X X
X
X
Gas stop valve does not fully open
X
X
X
X X
X X X
X
Line set restriction
X
X
X
X X
X X X
X
X
Line set length is too long
X
X
X
Blocked filter-dryer
X
X
X
X X
X X X
X
X
OD EEV coil failure
X X X X X X X X X X X X X X
X X
OD EEV failure
X X X X X X X X X X X X X X
X X
ID EEV coil failure
X
X
X
X
X X X X X X
X X X
ID EEV failure
X
X
X
X
X X X X X X
X X X
Check valve failure – Leakage
X
X
X
X
X X
X
High Pressure switch failure
X
Pressure sensor failure
X X X X X X X
X X X X
X
Suction temp sensor failure
X X X X
X X X X X X X
X
Discharge temp sensor failure
X X X X
X X X X
X
Coil temp sensor failure
X
X X X
X X
Defrost sensor failure
X
X X X
X X
Liquid temp sensor failure
X X
X X
Ambient temp sensor failure
X
X
X X X
X X
OD recirculation
X
X
X X
X
X X X
ID recirculation
X
X
X
X X X
Dirty OD Heat-exchanger
X
X
X X
X
X X X
X
Dirty ID Heat-exchanger
X
X
X
X X X
Outdoor Ambient temp is too high
X
X X X
X X
Outdoor Ambient temp is too low
X X X
X X
X X
X X X
ID suction temp is too high
X
X
X X X
ID suction temp is too low
X X
X
Mixture of non-condensible gas
X
X
X
X X
X X X
OD fan motor failure
X
X
X X
X
X X X
X
RV failure
X
X X
X X X X
X X
RV coil failure
X
X X
X X X
X
Over charge
X X X
X
X X X X
X
Under charge
X X X
X X
X X
X X
X
Leak
X X X
X X
X X
X X
X
ID failure
X X X X X X X X X X X X X X
X X X X
OD Control Board failure
X
Compressor failure
X X X X
X X
X X X
X X X
Cooling loop is not attached
X X X
Cooling loop grease is not enough
X X X
Low ID CFM
X
X
X
X X X
X
Indoor Normal Temperature Operating Range: 65-85°F
HEATING ANALYSIS CHART
Outdoor Normal Temperature Operating Range: 17-62°F
Outdoor Normal Temperature Operating Range: 67-115°F / Indoor Normal Temperature Operating Range: 65 - 85°F
A
VOID
CONTACT
WITH
THE
CHARGED
AREA
.
•N
EVER
TOUCH
THE
CHARGED
AREA
BEFORE
CONFIRMING
THAT
THE
RESIDUAL
VOLTAGE
IS
50
VOLTS
OR
LESS
.
1. S
HUT
DOWN
THE
POWER
AND
LEAVE
THE
CONTROL
BOX
FOR
10
MINUTES
.
2. M
AKE
SURE
TO
TOUCH
THE
E
ARTH
GROUND
TERMINAL
TO
RELEASE
THE
STATIC
ELECTRICITY
FROM
YOUR
BODY
(
TO
PREVENT
FAILURE
OF
THE
PC
BOARD
).
3. M
EASURE
THE
RESIDUAL
VOLTAGE
IN
THE
SPECIFIED
MEASUREMENT
POSITION
USING
A
VOM
WHILE
PAYING
ATTENTION
NOT
TO
TOUCH
THE
CHARGED
AREA
.
4. I
MMEDIATELY
AFTER
MEASURING
THE
RESIDUAL
VOLTAGE
,
DISCONNECT
THE
CONNECTORS
OF
THE
OUTDOOR
UNIT
’
S
FAN
MOTOR
. (I
F
THE
FAN
BLADE
ROTATES
BY
STRONG
WIND
BLOWING
AGAINST
IT
,
THE
CAPACITOR
WILL BE CHARGED,
CAUSING
THE
DANGER
OF
ELECTRICAL
SHOCK
.)
WARNING