Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn off flow and return isolating valves
Discharge and fully drain boiler
Warning!
Be aware of possible sharp edges of appliance frame
and take suitable precautions
Discharge and fully drain boiler
Warning!
Be aware of possible sharp edges of appliance frame
and take suitable precautions
Measurement:
With boiler drained remove circlip holding the auto bypass valve.
Warning!
Some water may still remain in the appliance.
Remove and inspect auto bypass valve.
Does the spring loaded valve move freely?
Warning!
Some water may still remain in the appliance.
Remove and inspect auto bypass valve.
Does the spring loaded valve move freely?
Isolate as per TOPs P4
and refit as necessary