40
9-2-6 Discharge Temperature Rise
Discharge temperature rise
Error message “High temp.” appears
Start-Up
Request a service
Check the
controller
- Check the input/out of the
temperature sensor
- Replace the temperature sensor, if
necessary
Yes
High ambient
temperature
- Keep the internal temperature 104℉
or below
- Check the ventilation facility and
duct
Yes
No
No
1) An appropriate temperature of an airend is 158℉ or below at the operating temperature 104℉
or below.
2) Always take necessary action if the temperature of the airend is sharply increased with no
change in ambient temperature.
Notes:
9-3 Other Troubleshooting
Trouble
Cause
Action
1. Tripped due to
the over current
in motor
1) Compressor is tripped.
- Foreign substance in the compressor
- Damage to the wrap of the compressor
- Low voltage
2) Open-phase/Unbalanced power supply
3) Deteriorated coil in the motor
4) Failure of EOCR
1) Contact the distributor.
- Improve the power supply.
2) Improve the power supply.
3) Check the motor.
4) Readjust or replace.
2. Noise and
Vibration
1) Fixing bolts are loose.
2) Noise from the compressor
- Bearing is worn out or damaged.
- Foreign substance in the compressor
3) Improper belt tension and the damage
to the parts
4) Inadequate installation of the compressor
5) Failure of cooling fan (dust or damaged)
1) Readjust.
2) Contact the distributor.
3) Realign or replace the belt.
4) Reinstall the compressor.
5) Clean or replace the fan.
After eliminating the cause
TROUBLESHOOTING
