Test Operation
Samsung Electronics 315
8) 4-way valve
Error code: None ("NG" is only indicated in the result report)
■ Precautions
Does the result
pressure sensors are properly
functioning?
valve connector properly connected to
the PBA?
Is the pin-to-pin
the Hub PBA 220V?*
Is the coil
functioning?
Perform Trial Operation (cooling/heating)
- See the instructions on Key operation modes.
Is a symptom
caused by malfunction of
present?
Is the operation cycle normal?
Perform Auto Trial Operation again.
Replace the body of the
Take corrective measures.
Take corrective measures.
Take corrective measures.
Replace the Hub PBA.
After completing trial operation in heating mode, measure the pin-to-pin
after trial operation in cooling mode is turned off).
Replace the coil.
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Yes
9-1 Auto Trial Operation (cont.)
9-1-3 How to resolve NG items (cont.)
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