Technical data

52
4000123924-2
20 Replacement of Parts
Diagram 20.13
9744
➜
BOILER DRAIN
VALVE
Diagram 20.14
WATER FLOW
SENSOR
➜
➜
➜
11590
➜
➜
F30E/F35E Only
➜
➜
9758
Diagram 20.15
SYSTEM WATER PRESSURE
SENSOR
F30E shown
BYPASS VALVE
20.23 Boiler drain point, refer to diagram 20.13.
Before starting refer to the front of Section 20 Important
information.
• Remove the front panel, refer to Section 17.3.
• Lower the control panel, refer to Section 17.4.
• Drain down the boiler only, refer to relevant part of diagram
20.1.
Pull out slotted metal clip securing boiler drain valve into
housing, remove boiler drain valve.
20.24 (F30E/F35E Only) Water flow sensor, refer to
diagram 20.14.
Before starting refer to the front of Section 20 Important
information.
• Remove the front panel, refer to Section 17.3.
• Lower the control panel, refer to Section 17.4.
Drain down the boiler, refer to relevant part of Section 20.1.
• Undo the union nut on the cold water inlet isolating valve.
• Pull out slotted metal clip securing filling system tap into
housing, swing the tap forwards.
• Pull out the two slotted metal clips retaining the domestic
water inlet filter housing.
• Remove domestic water inlet filter housing.
• Remove electrical connections from water flow sensor.
• Pull off slotted metal clip and remove water flow sensor.
20.25 System water pressure sensor, refer to diagram
20.15.
Before starting refer to the front of Section 20 Important
information.
• Remove the front panel, refer to Section 17.3.
• Lower the control panel, refer to Section 17.4.
Drain down the boiler, refer to relevant part of Section 20.1.
• Remove electrical connections from water pressure sensor.
• Pull off slotted metal clip and remove water pressure sensor.