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13. Troubleshooting Guide
13.1. Refrigeration cycle system
In order to diagnose malfunctions, make sure that there are no electrical problems before
inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with
the power source, malfunction of a compressor and a fan.
The normal outlet air temperature and pressure of the refrigeration cycle depends on various
conditions, the standard values for them are shown in the table to the right.
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Remote Control
Switch SW B
A
A
B
A
Jumper wire
B
Jumper wire
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Indoor printed circuit board
J - B
J - RA
——
SHORT
——
SHORT
OPEN
OPEN
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Note
J - RB
SHORT
At product
delivery
OPEN
SHORT
OPEN
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