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15 Replacement of Parts
15.20 Low Water Pressure Sensor
For access, refer to section 15.1.
Drain the boiler heating circuit as described in the appropriate
section of 15.1.
Refer to diagram 15.15.
Disconnect the electrical leads.
Remove the retaining clip, remove the low water pressure
sensor.
Fit new ‘O’ ring.
Fit the new low water pressure sensor.
Rell vent and pressurise the boiler.
15.21 Automatic Bypass and Housing
For access, refer to section 15.1.
Drain the boiler heating circuit as described in the appropriate
section of 15.1.
Refer to diagram 15.16.
Remove the retaining clip to remove the automatic bypass.
Remove the retaining clips and three securing screws to
remove the automatic bypass housing. Fit new ‘O’ rings
before replacing the assembly.
Rell, vent and pressurise the boiler.
RETAININ
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