Error Due To High Pressure Switch Open Or Compressor Down By High Pressure - (E507) - Samsung AC024BXUPCH Service Manual

Troubleshooting

4-2-25. Error due to high pressure switch open or compressor down by high pressure - (E507)

Outdoor unit display
Judgment Method
Cause of problem
1. Cause of problem
Auto test mode, Cool or Heat test mode
Are all service valves open?
Is the error not reset even though the measured
high pressure is less than 426.7 psi (30kg/ ㎠ )?
Are the Indoor Unit TXV and Outdoor Unit
Are there any blockage inside
operating normally for the cooling and
the Indoor Fan operating normally for
Check the refrigerant amount
4-30
( Air Cooled )
• Value of the high pressure switch is detected at 597.4 psi (42kg/ ㎠ ) or more
<Cooling Operation>
• Service valve locked/Excessive refrigerant
• Outdoor Unit fan motor problem (constrained, defective)
• Outdoor heat exchanger is contaminated
<Heating Operation>
• Service valve locked/Excessive refrigerant
• Indoor Unit fan motor problem (constrained, defective)
• Indoor heat exchanger is contaminated
• Simultaneous operation of Heat-Pump and Furnace
Yes
Yes
EEV normally operation
Yes
the pipe? (filter etc.)
No
Are the Outdoor Fan
the heating?
Yes
Connect S-net and Manifold Gauge.
(essential requirement)
No
Open the Service Valve
No
Replace High Pressure switch
No
Check the relevant EEV or TXV
Yes
Pipe inspection
No
Replace relevant component
(motor or fan)
Samsung Electronics