York YFFE60BXTM-M-R1 User Manual

Troubleshooting
 Page 95 
5.5 EC (Refrigerant Leakage Detection diagnosis and solution)
Description: Define the evaporator coil temp.T2 of the compressor just starts running as Tcool.
If the following occurs 3 times, the display shows “EC” and the unit switches off:
In the first 8 minutes after the compressor starts up, if T2 <Tcool-2°C is not maintained for 4 seconds and compressor
running frequency is not higher than 50Hz for 3 minutes.
Recommended parts to prepare:
• Faulty T2 sensor
• Faulty compressor
• Faulty capacitor of compressor
• Faulty indoor PCB
• System problems, such as leakage or blockages
• Faulty capacitor of fan motor
• Faulty outdoor fan
Troubleshooting and repair:
P o w e r o ff, th e n re sta rt th e u n it 2 m inutes later.
P o w e r o ff, th e n re sta rt th e u n it 2 m inutes later.
A re any leakages present?
A re any leakages present?
C heck System for blockages and clear
blockages if present.
C heck System for blockages and clear
blockages if present.
D oes a problem rem ain?
D oes a problem rem ain?
Put your hands in front of the
indoor air outlet.
Put your hands in front of the
indoor air outlet.
YES
Is there cool air blow ing
out
from indoor air outlet?
Is there cool air blow ing
out from indoor air outlet?
Is it secu rely
attached?
Is it secu rely
attached?
NO
C heck th
e T2 sen so r.
C heck th e T2 se n so r.
YES
C heck system for leakages.
C heck system for leakages.
NO
NO
Repair the leakage and
re
ch a rg e th e re frig e ra n t.
Repair the leakage and
re ch a rg e th e re frig e ra n t.
YES
NO
The com pressor is operating
c
onstantly
The com pressor is operating
constantly
The com pressor does not
o p e ra te
The com pressor does not
o p e ra te
D oes a problem rem ain?
D oes a problem rem ain?
Replace the com pressor
Replace the com pressor
Replace the c a p a cito r o f
com pressor
Replace the c a p a cito r o f
com pressor
NO
NO
NO
Th
e com pressor operates
several m inutes then ceases
The com pressor operates
several m inutes then ceases
D oes a problem rem ain?
D oes a problem rem ain?
Replace the outdoor fan
Replace the outdoor fan
Replace the c a p a cito r o f fa n
m otor
Replace the c a p a cito r o f fa n
m otor
NO
NO
NO
Replace indoor PC B
Replace indoor PC B
Is it w it h in a c c e p t a b le
param eters?
Is it w it h in a c c e p t a b le
param eters?
M easure the resistance value
o f th e sen so r.
M easure the resistance value
o f th e sen so r.
Repla ce th e sensor.
Repla ce th e sensor.NO
YES
YES
R e in se rt th e T 2 se
n so r
R e in se rt th e T 2 se n so r

York YFFE60BXTM-M-R1 Specifications

General

Brand	York
Model	YFFE60BXTM-M-R1
Category	Air Conditioner
Language	English