Troubleshooting Guide

ManualsBrandsPioneer ManualsHeatingMulti 36,000 BTU 3 Ton 22 SEER Triple (3) Zone Wall Mount Air Conditioner Heat Pump, 230-Volt 16 ft.

Table Of Contents

111

7) Disconnect the

connectors and wires

connected from PCB and other

parts.

Connectors:

CN17:T3/T4 temperature sensor

(2p/2p,white)

CN7: Discharge temperature sensor

(2p,white)

CN12:Ttop temperature

sensor(2p,white)

CN15:T2B-A,B,C temperature sensor

(2p/2p/2p,white)

CN18/CN19/CN22: Electronic

expansive valve A,B,C

(6p/6p/6p,red/red/red)

CN25/CN23/CN20: S-A,S-B,S-C

(3p/3p/3p,white/white/white)

Wires:

CN1/CN2: 4-way valve (blue-blue)

CN5/CN6: Crankcase heating cable

(red-red)

CN3:L1-IN (red)

CN4:L2-IN (black)

8) Disconnect the

grounding wire (yellow-green)

after removi

ng the big h

andle

and the right

-rear panel.

9)

Remo

ve the PCB board.

⑧

CN15

CN7

CN17

CN18/CN19/CN22

CN1/CN2

CN3

CN5/CN6

CN4

CN20

CN23

CN25