To Remove Transformer And Electronic Controller Board; To Remove Pressure Relief Valve, Flow Switch And Air Purge Valve - Panasonic WH-SHF09F3E5 Service Manual

17.6 To Remove Transformer and Electronic Controller Board

2. Remove 3 screws to
remove Transformer.
3. Disconnect all connectors,
CN-PWR (BLK), SN-SOLAR (WHT),
CN-PUMP2 (WHT), CN-V2 (WHT),
CN-V3 (GRN), CN-RCV2 (WHT),
CN-OLP2 (WHT), CN-TH2 (WHT),
CN-THERMO (WHT), CN-TH3 (WHT),
CN-TH1 (WHT), CN-FLOW (YLW),
CN-REMOTE2 (WHT), CN-OLP1 (WHT),
Disconnect lead wires AC1-L3 (BLK),
AC1-N (WHT), DATA (RED), G02 (GRN),
G01 (GRN), L2 (WHT), L1 (WHT),
G04 (GRN), G03 (GRN), AC2-L2 (YLW),
HT1-L2 (ORG), HT1-L3 (RED),
AC2-L3 (BLK), AC2-N2 (WHT),
ACN-BOOSTER (WHT), ACL3 (BLK),
ACL-BOOSTER (BRN),
ACN-BOOSTER2 (WHT),
ACL-BOOSTER2 (BLK).

17.7 To Remove Pressure Relief Valve, Flow Switch and Air Purge Valve

3. Pull outward to remove
Pressure Relief Valve.
Pressure Relief Valve
2. Pull down to remove water hose.
When reinstall Flow Switch, ensure the arrow on the flow switch is parallel with the pipe shaft and is facing in
the direction of flow.
CN-T1
Transformer
1. Remove 2 retaining ring.
127
4. Remove screw to remove
the Electronic Control Board.
Electronic Controller Board
1. Disconnect the 2 lead wire
T1, T2 (Black) and connector
CN-T1 (WHT) from the
Electronic Control Board.
Air Purge Valve
5. Turn the Air Purge Valve
anti-clockwise then remove.
Flow Switch
4. Turn the Flow Switch
anti-clockwise then remove
Flow Switch.