Viessmann VITODENS 200-W WB2B Service Instructions For Contractors page 84

80 and 105 kw, wall mounted gas fired condensing boiler, natural gas version
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Troubleshooting
Repairs
(cont.)
1. Pull the leads from temperature
limiter A.
2. Check the continuity of the tem-
perature limiter with a multimeter.
3. Remove the faulty temperature lim-
iter.
84
4. Install a new temperature limiter.
5. After commissioning, press reset
button "E RESET" at the control
unit.

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