To Remove Transformer And Electronic Controller Board; To Remove Pressure Relief Valve, Flow Switch And Air Purge Valve - Panasonic WH-MHF09G3E5 Service Manual

17.6 To Remove Transformer and Electronic Controller Board

1 Disconnect the 2 lead wire T1, T2 (Black)
and connector CN-T1 (White) from the
Electronic Controller Board.

17.7 To Remove Pressure Relief Valve, Flow Switch and 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.
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.
Electronic Controller Board
Air Purge Valve
Transformer
2 Remove 4 screws to remove Transformer.
4 Using screw driver remove screw to
remove Electronic Controller Board.
3 Disconnect all connectors of
CN-TH2 (WHT), CN-TH1 (WHT),
CN-BOOSTER (BLU), CN-OLP2 (WHT),
CN-PUMP1 (GRN), CN-RCV (WHT),
CN-V3 (GRN), CN-FLOW (YLW),
CN-REMOTE (WHT), CN-THERMO (WHT),
DATA (RED), G02 (GRN), AC3-L1 (BLK),
G01 (GRN), G04 (GRN), AC2-L3 (BLK),
HT1-L2 (ORG), HT1-L3 (RED), CN-OLP1 (WHT)
and CN-HT (WHT) from the Electronic Controller Board.
Pressure relief valve
125
3 Pull outward to remove
Pressure Relief Valve.
1 Remove 2 retaining rings.
2 Pull down to remove
water hose.