Asa rule, the recommended value for hot water in the bathroom and kitchen is around 45-55°C, but this depends on your personal needs. Keeping the hot water temperature low, by setting a value of 45°C, for example, allows you to save up to 5% on energy consumption. This may seem like a small saving, but at the end of the year it can represent Isyour Ariston boiler on the blink? In this guide we'll explore some of the most common faults and costs to fix. 182.7 Removing the heat exchanger 4. Unscrew the three bolts M from 5 .Remove the flow and return 1. Drain down the boiler; the main heat exchanger (Fig. pipes and the condense drain 2. Carry out step 18.1.1; 77); pipe from the heat exchanger. 3. Page 51: Access To The Water Circuit 18.3 Access to the Water Circuit Important! Thawinga frozen boiler condensate pipe's a relatively simple process. Locate the condensate pipe outside your property and pour warm (not boiling) water over it. After a few minutes it should've thawed and you can reset your boiler. If you feel uncomfortable doing any of these things then we’d advise that you call a Gas Safe engineer to come London Country. 26 May 2011. #7. Use X800 for four hours with heating running at minimum temperature. Then wash out and add X100. It would be a good idea to remove LP switch and clear the dirt in the inlet AND the drilling which supplies it while the system is drained. Tony Glazier. D. TimSmith shows us how to diagnose a faulty thermostat on a gas boiler. Is the thermostat calling for heat?Are the burners firing?Is the circulator running?I Instantwater heater : 3,3kw x 19/60 x S$0.2996 = S$0.313 Storage water heater : 1.5kw x 70/60 x S$0.2996 = S$0.524. The above calculation does not take into consideration of other factors such as capacity of water heater, frequency of bath per user and original temperature of water in the tank. Ifyour gas or electric boiler won’t heat up, you clearly need to call a specialist technician to inspect the water heater. You should not attempt to repair it yourself as it may worsen Theseinstructions are suitable for CLAS HE boilers : Do not forget the Log Book! boiler and controls. ARISTON recommend the use of protective clothing, when installing and working on the appliance i.e. gloves. Maximum heating pressure 12. Boiler type 13. NOx class / Effi ciency 14. Input rating nominal heating 15. Power ouput heating Thelock out itself (the boiler will stop working), is a safety precaution. Your boiler is either protecting itself (continued operation might damage expensive components, like the heat exchanger and pump), or the people in the property (for example, in the event of a gas valve letting-by/leaking). For that reason, you shouldn’t reset your CTA7uaI.