Viessmann Vitotwin 300-W - Page 152

152
1. Allow the Stirling engine to cool down
until the head temperature is
≤
50 °C.
2.
Remove plug A and check the
resistance values. Set resistance val-
ues: 15 Ohm ±5 %.
3. Replace resistors if necessary.
4. Remove the r.h. side panel.
5. Undo screws and remove faulty
resistor
B
or
C
, then fit new resis-
tor.
6.
Connect new resistor B or C to the
plug.
7.
Insert resistor plug A into the control
unit.
Check overtravel switch connection
A A
Check plug-in connection and cable to
overtravel switches
A
.
Troubleshooting
Repairs
(cont.)
5618 294 GB