I've got a saunier duval thelia 23, the hot water has been working fine all throughout summer but last night I switched it to hot water and central heating and the heating didn't come on. The pilot light is on and the hot water continues to work fine, usually when the heating is switched on the boiler "fires up" but nothing at all happened this time.
Heating not working
- Thread starter sarahmak
- Start date
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