62
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 side.
■
Disconnect the on-site cables/leads.
Removing the boiler from the pre-plumbing jig
Fig. 29
Note
When assembling, use new gaskets and – if necessary
– new locking ring fittings:
Gas connection Ø 18.5 mm
Gaskets and locking ring connections are available as
individual parts (if required).
Note
When carrying out any work on gas connection fittings,
hold with a suitable tool. Never transfer any forces to
the internal components.
Danger
Escaping gas leads to a risk of explosion.
Check all connections on the gas side (also
inside the appliance) for tightness.
Troubleshooting
Repairs
(cont.)
6174240
Diagnosis
