Delta InfraSuite RDA037, User Manual

Page: 84 / 92

InfraSuite R Series – Air Cooled Type 84
Item Sign of Failure Possible Cause
Troubleshooting
Instructions
6
The outdoor fan is
not running
1. The air conditioner is
not turned on
2. The outdoor unit panel
circuit breaker is not
turned on
3. No need to turn on the
outdoor fan
4. Fan or outdoor unit
abnormality
1. Turn on the air conditioner
2. Turn on the outdoor unit
panel circuit breaker
3. Check the system status
to confirm the power
requirements
4. Check the fan and
outdoor unit
7 Poor cooling effect
1. Insufficient refrigerant
filled
2. Clogged filter drier
3. Insufficient air volume
going through the
condenser of the
outdoor unit
4. The air filter of the
indoor unit is dirty
1. Replenish the amount of
refrigerant filled after
maintenance of leakage
point
2. Replace the filter drier
3. Remove impurities or
foreign matter at the air
inlet end of the outdoor
unit condenser
4. Replace the air filter
8
Water is
overflowing from
the air conditioner
1. The drain pipelines are
loose
2. The drain pipelines are
blocked
1. Make sure that the drain
pipelines are firmly
connected
2. Make sure that the drain
pipelines are unobstructed
9
The air conditioner
cannot
communicate via
RS485
1. The connections are
wrong
2. The communication
line is not grounded
3. An anti-interference
communication line
was not used
1. Check whether the
connections are correct
2. Connect the ground wire
3. Use an anti-interference
communication line
If an abnormality persists after troubleshooting, contact service personnel.
If an alarm or warning needs to be restarted, please contact service personnel.