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SiBE28-804
Troubleshooting by Remote Controller Display / LED Display
Troubleshooting
193
5.25 “
H3
” Malfunctioning HPS System
Remote
Controller
Display
H3
Applicable
Models
RZQ(S)71~140
Method of
Malfunction
Detection
The protection device circuit checks continuity in the high pressure switch.
Malfunction
Decision
Conditions
When there is no continuity in the high pressure switch during compressor stops operating.
Supposed
Causes
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
Troubleshooting
Wait for 10 minutes after
the unit stops operating,
then check the following.
Connect correctly.
Replace HPS with no
continuity.
Resistance in normal
operation :
10
Ω
or less
Replace the lead wire.
Is there
continuity in each
protection HPS?
NO
Is
protection HPS
connector (*1) correctly
connected to outdoor
unit PC board?
NO
YES
YES
YES
Is there
continuity in lead
wire?
NO
*1 Connector symbol
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
RZQ71C7, RZQS71·100C7
Replace the outdoor inverter PC
board (A2P).
RZQ100~140C7,
RZQS125·140C7:
Replace the outdoor PC board
(A1P).
RZQ71 ~ 140C7,
RZQS71~140C7
X32A (A1P)
Summary of Contents for FHQ100BUV1B x 2
Page 13: ...SiBE28 804 2 ...
Page 19: ...Model Name and Power Supply SiBE28 804 8 General Information ...
Page 29: ...Specifications SiBE28 804 18 Specifications ...
Page 33: ...Wired Remote Controller SiBE28 804 22 Remote Controller 1 2 Installation ...
Page 34: ...SiBE28 804 Wired Remote Controller Remote Controller 23 ...
Page 93: ...Outdoor Unit Fan Speed Control SiBE28 804 82 Functional Description ...
Page 131: ...Test Run and Operation Data SiBE28 804 120 Test Operation ...
Page 251: ...Troubleshooting by Remote Controller Display LED Display SiBE28 804 240 Troubleshooting ...
Page 277: ...PCB Layout SiBE28 804 266 Appendix ...
Page 297: ...RZQ100 140C7 RZQS125 140C7V1B SiBE28 804 286 Removal Procedure ...
Page 311: ...SiBE28 804 iv Index ...