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5461 885 - 04
Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
Troubleshooting
Cause
Remedy
The heating system is off.
- Switch the ON/OFF switch ON (see diagrams page 15).
- Switch ON the mains isolator, if installed (outside the
boiler room).
- Reset the fuse/MCB in the power distribution board
(main domestic fuse/ MCB).
Control unit or remote control incorrectly adjusted.
Check settings and correct if required:
- DHW heating must be enabled (see page 22).
- DHW temperature (see page 22).
- Time program (see page 23).
- Time (see page 28).
No fuel.
With liquid propane gas:
Check the fuel reserves and re-order if required.
With natural gas:
Open the gas shut-off valve. If necessary, check with
your gas supply utility.
“Fault” is displayed, and the red fault indicator flashes.
Scan and acknowledge the type of fault (see page 32).
If necessary, notify your heating contractor.
There is no Hot Water
The DHW is too Hot
Cause
Remedy
The control unit is incorrectly adjusted.
Check and correct the DHW temperature if required
(see page 22).
“
” Flashes and “Fault” is Displayed
Cause
Remedy
Heating system fault.
Proceed as described (see page 32).
