Viessmann B2HAA95, Руководство по эксплуатации

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Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
5461 885 - 04
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Troubleshooting
Rooms are too Cold
Cause Remedy
The heating system is off. - Switch the ON/OFF switch ON (see diagrams page 10).
- 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:
- “Heating and DHW” must be selected (see page 16).
- Room temperature (see page 17).
- Time (see page 28).
- Time program (see page 18).
Only when operating with DHW heating:
DHW priority is enabled.
Wait until the DHW tank has been heated up.
In the case of operation with an instantaneous water
heater, stop DHW draw-off.
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.
“Combustion controller” is shown on the display. Press R (reset button) see page 15.
Acknowledge the fault (see page 32).
Notify your heating contractor if this fault recurs.
The fault message is displayed until the cause is rectified.
“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.
Mixing valves motor faulty. Adjust the mixing valves manually.
Cause Remedy
Control unit or remote control is incorrectly adjusted. Check settings and correct if required:
- Room temperature (see page 17).
- Time (see page 28).
- Time program (see page 18).
“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.
Mixing valves motor faulty. Adjust the mixing valves manually.
Rooms are too Hot