Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 254
HIC-CH4872R, Type 42
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HIC-CH4872R (Type 42) 4. Service procedures HIC-CH2672R (Type 26, 36) Resistance Between terminals HIC + HIC - HIC + U HIC + V HIC + W HIC - U HIC - V HIC - W Resistance 200 kΩ or more 300 kΩ or more 300 kΩ or more 300 kΩ or more 200 kΩ or more 200 kΩ or more 200 kΩ or more 4 (3) [Alarm "E31"] (communications trouble within unit) IGBT short-circuit protection Is "E31" displayed even after No the power voltage is reset? Yes Replace outdoor unit control PCB. Normal 4-10
4-10
4. Service procedures
HIC +
Between terminals
Resistance
HIC +
HIC +
HIC +
HIC –
HIC –
HIC –
HIC –
U
V
W
U
V
W
Resistance
200 k
Ω
or more
300 k
Ω
or more
300 k
Ω
or more
300 k
Ω
or more
200 k
Ω
or more
200 k
Ω
or more
200 k
Ω
or more
No
Yes
Replace outdoor unit
control PCB.
(3) [Alarm “E31”]
(communications
trouble within unit)
IGBT short-circuit protection
Is “E31”
displayed even after
the power voltage
is reset?
Normal
HIC-CH4872R
(Type 42)
HIC-CH2672R
(Type 26, 36)
4