Viessmann VITODENS 242-F Installation And Service Instructions Manual page 147

3.2 to 26 kw gas condensing/solar storage combi boiler gas council no. 41-819-18; 41-819-19 natural gas and lpg version
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Repair
(cont.)
Checking the fuse
A
1. Switch off the power.
2. Release the side closures and pivot
the control unit down.
F1
3. Remove cover A.
4. Check fuse F1 (see connection and
wiring diagram).
Troubleshooting
147

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