Replacement of Parts 141
6. Carefully remove the pump.
Figure 26
7. Remove the air vent.
Figure 27
8. Replace with the new circulation pump (or Air Vent).
9. Place the new pump back into its original position and ensure
that all connections are tightly sealed.
6.2.10 Circulation Pump
1. Turn off the gas supply to the unit.
2. Disconnect the unit from the power supply.
3. Turn off the water supply to the unit.
4. Open the drain plug on the pump and Remove the 4 screws
from the bottom of the case.
Figure 19
5. Remove the stainless nut, fastener and circulation pump wiring
connector (Figure ).
Figure 5
