80
Shutting down the boiler
1.
Turn off the power supply at the ON/OFF switch.
2.
Shut off the gas supply.
3.
If the boiler needs to be removed:
■
Isolate the system from the power supply, e.g. by
removing the separate fuse or by means of a
mains isolator, and check that it is no longer live.
■
Safeguard the system against reconnection.
■
Disconnect the balanced flue system.
■
Drain the boiler on the heating water and DHW
sides.
■
Disconnect the on-site cables/leads.
Removing the boiler from the pre-plumbing jig or mounting frame
1.
3.
4.
37
37
2.
Fig. 42
Troubleshooting
Repairs
(cont.)
6167586
Diagnosis
