Inadequate Cooling Or Heating - Gree Neo GWH09MA-A3DNA3A Installation, Service & Troubleshooting

Abnormal
Cooling or
Heating
130
Troubleshooting

Inadequate Cooling or Heating

Incorrect temperature setting
Insufficient airflow
Poor insulation on linesets
Insufficient refrigerant flow
Outdoor temperature too high
Excessive indoor heating loss
Excessive indoor cooling load
Adjust temperature setting
Outdoor unit coil
blockage
Indoor air filter blocked
Low Fan Speed
Low indoor air movement
Ensure that both linesets and fittings are insulated
well, both large and small.
Refrigerant circuit has
a leak
Leak between valves inside
compressor
Internal leaking of 4-way
valve
Blockage of refrigerant flow
Check for proper outdoor unit location, check
for proper sizing of unit capacity.
Check for leakage around windows, doors,
poor insulation. Calculate heat loss and check
Check for leakage around windows, doors,
poor insulation, internal load such as
computers, etc. Calculate heat gain and check
1. Clean outdoor coil
2. Check for adequate
airflow around unit
Clean indoor filters
Set fan speed to high
1. Check fan capacitor
2. Check fan blade
3. Check for damaged
motor
Check system for leaks
following procedure
explained in the "Charging"
section of this manual.
Replace compressor
Replace 4-way valve
Observe the temperature of
refrigerant lines for proper
flow
for proper sizing
for proper sizing