Rotenso J100Wi, Service Manual

Page: 111 / 132

LCAC R32 Series
111 Service manual
4.4.13 J1 Malfunction
Malfunction conditions
When the outdoor pipe temperature is more than 65°C, the unit stops. It starts again only when the
outdoor pipe temperature is less than 52°C.
Possible causes
• Faulty condenser temperature sensor
• Dirty heat exchanger
• System leakage or blockages
Correct the connection No
Yes
Is the connection between
temperature sensor and
PCB in working order?
Yes
J1 displayed
High temperature protection of
condenser
Is the condenser
temperature is Higher than
Yes
Istheresistanceof
condensertemp.sensor
normalaccording to
Appendix 1
65°C?
Replace the temperature sensor
No
No
Is the outdoor ambient
temperature higher than
50 ?
No
Stop the unit Yes
Is the outdoor unit ventilation
functioning properly?
Yes
Ensure that the outdoor unit
ventilate is functioning properly
Is the heat exchanger dirty?
No
Yes
Check whether the refrigerant
system is functioning normally
Clean the heat exchanger
Repllace outtdoor maiin
board.. Has the probllem
been resollved
No
If the level of refrigerant is not
sufficient, does the system work after
refrigerant is added?
No
Is the outdoor fan running
properly?
Refer to the solution to the
malfunction of fan speed being out of
control . Find the cause and resolve the
problem.
No
Yes
No
PART 6. TROUBLESHOOTING