Module AD03

Product detailed description

Atmos AD03 Module

This is two relays in one module, used to control the flue extraction fan of an Atmos boiler and the pump in the boiler circuit (or the solar pump)

FAQ

• How can I verify that "Module AD03" fits my appliance exactly? The most reliable way is to compare the exact type/catalogue designation on your appliance's (boiler, storage tank, water heater) nameplate with the compatibility stated directly in this product's name (Atmos brand) and in its technical parameters above. If anything is unclear, send us the exact type designation of your appliance (including the serial number, if available) - we will gladly verify compatibility for you.
• Why is it important to use an original/compatible part rather than a universal replacement? Parts such as seals, sensors, or safety components (safety valves, thermal fuses) are usually dimensioned precisely to the parameters of the specific appliance (pressure, temperature, sensor resistance) - the wrong part can cause reduced function, leaks, or, in the case of safety components, a genuine safety risk.
• Does this part need to be installed by a professional? For simpler mechanical parts (e.g. seals, covers, small accessories with no connection to electricity, gas, or the pressurised section), a handy DIYer can usually manage the replacement after disconnecting the appliance from power and the system. However, for any intervention in the gas, electrical, or pressurised part of the appliance (e.g. sensors located directly in the combustion chamber, safety valves, electrical modules), we always recommend a service technician - especially since such an intervention could affect the validity of the warranty on the entire appliance.
• How do I know this part is worn and needs replacing? Common signs include visible wear/cracking (for seals and rubber parts), water or flue-gas leaks at the part's location, an error message on the controller's display (for sensors and electronic modules), or noticeably reduced performance of the appliance (e.g. irregular burning in burner parts). If in doubt, the safest option is to have a service technician assess the condition during the regular annual inspection.
• Is it worth keeping this part at home as a spare? For parts that are subject to normal wear (seals, fuses, small mechanical components) and whose failure would mean a heating or hot water outage, keeping a spare on hand is a sensible precaution - especially for an older appliance, for which it can be harder to source the part quickly.