Troubleshooting For Automatic Pti (J-Code) - Daikin LXE10E-A Service Manual

https://daikin-p.ru

6.3 Troubleshooting for automatic PTI (J-code)

Step Content
P00 Basic data record
P02 Alarm check on all
sensor
P04 Power supply
check
P05 Compressor start
running check
P06 HPS check
P08 Pump down check
P10 Solenoid valve
check
P12 RS, SS accuracy
check
P14 HPT, LPT
accuracy check
P16 Evaporator fan
Hi/Lo speed
operation check
P20 Check on economizer
solenoid valve (ESV)
Alarm
Conclusion
code
No No judgment
indication
Same as Same as normal
normal operation
operation
No Same as normal
indication operation
J051 Same as normal
operation
J061 Abnormal OFF point (1) HPS malfunction
J062 Not return
J064 High pressure does not rise.
J065 High pressure does not drop.
J081 Pump down
requires too long
time.
J101 Excessive
leakage of
solenoid valve
J121 Excessively large
temperature
difference between
RS and DRS
Excessively large
temperature
difference between
SS and DSS
J141 Excessively large
pressure
difference
between HPT
and LPT
J161 Abnormal operation
of evaporator fan
speed
J201 ESV does not
open.
Possible cause
Same as normal operation
Same as normal operation
Same as normal operation
(2) High pressure transducer
(HPT) malfunction
(3) Gas leak from Gauge
manifold
(No unit malfunction)
Blocked with contamination of
liquid solenoid valve
Leakage of hot gas by-pass
solenoid valve
Leakage of defrosting solenoid
valve
Leakage of discharge gas by-
pass solenoid valve
Liquid solenoid valve malfunction Check Liquid solenoid valve
Suction modulating valve malfunction Check Suction modulating valve
Injection valve malfunction
SS malfunction
RS malfunction
HPT malfunction
LPT malfunction
Evaporator fan and motor malfunction.
Magnetic contactor (EFH/L) and wiring
malfunction.
ESV coil malfunction
ESV malfunction
6-17
Check method
Same as normal
operation
Same as normal
operation
Same as normal
operation
(1) Check HPS
(2) Compare to Gauge
manifold
(3) Remove Gauge
manifold.
Try again S-PTI
Touch the outlet pipe of
the solenoid valve.
Touch the outlet pipe of
the solenoid valve.
Touch the outlet pipe of
the solenoid valve.
Check Injection valve
Compare the SS with
the DSS on the
controller panel.
Compare the RS with
the DS on the controller
panel.
Compare the high pressure
valve with the gauge manifold of
HPT (on the controller panel).
Compare the low pressure
valve with the gauge manifold
of LPT (on the controller panel)
Check Evaporator fan and motor.
Check magnetic contactor
(EFH/L) and wiring.
Check on ESV coil, wiring
and terminals.
Check on capillary tube
temperature on ESV outlet.