Malfunction Of High Pressure Switch System - Daikin SkyAir Super Inverter 70 D Series Service Manual

Troubleshooting by Remote Controller Display / LED Display

6.22 Malfunction of High Pressure Switch System

H3
Remote
Controller
Display
Outdoor Unit LED
A
Display
Applicable RZP71~140D
Models
Method of
The protection device circuit checks continuity in the high pressure switch.
Malfunction
Detection
Malfunction
When there is no continuity in the high pressure switch during compressor stops operating
Decision
Conditions
Supposed
Causes
Troubleshooting
160
5 1 4 2 4 3 3 4
Incomplete high pressure switch
Disconnection in high pressure switch harness
Faulty connection of high pressure switch connector
Faulty outdoor unit PC board
Disconnected lead wire
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is
protection HPS
connector (*1) correctly
connected to outdoor
unit PC board?
YES
Wait for 10 minutes after
the unit stops operating,
then check the following.
Is there
continuity in each
protection HPS?
YES
Is there continuity
in lead wire?
YES
*1 Connector symbol
RZP71 ~140D : X60A
3
NO
NO
NO
SiE25-110
Connect correctly.
Replace HPS with no continuity.
Resistance in normal operation :
10Ω or less
Replace the lead wire.
Replace the outdoor unit PC board.
(S2587)
Troubleshooting