67
15.2.12 H98 (Indoor High Pressure Protection)
Malfunction Decision Conditions
During heating operation, the temperature detected by the indoor pipe temperature sensor is above 60°C (140°F).
Malfunction Caused
Clogged air filter of the indoor unit.
Dust accumulation on the indoor unit heat exchanger.
Air short circuit.
Detection error due to faulty indoor pipe temperature sensor.
Detection error due to faulty indoor unit PCB.
Troubleshooting
Check the air filter.
Clean the air filter.
Yes
For safety reason and to prevent component
breakdown, always switch off the power before
remove and connect the component.
Is the air filter dirty?
Check the dust accumulation on
the indoor unit heat exchanger.
Is the indoor unit heat
exchanger dirty?
No
Check the air passage.
Provide sufficient air
passage.
Yes
Is there any short circuit?
No
Check the indoor pipe
temperature sensor.
Replace the indoor unit
PCB.
Yes
Does it conform to the
sensor characteristic chart?
No
Clean the heat exchanger.
Yes
No
Replace the indoor pipe
temperature sensor.
To Next Page
Loading...
