Gaggia D90 Evolution Operating Instructions Manual

Also see for D90 Evolution: Specifications Use and maintenance

41ENGLISH11 - TROUBLE SHOOTINGPROBLEM CAUSE REMEDYMachine switch off 1. Mains switch off 1. position the machine switch to position ON2. Machine switch off 2. position the machine switch to position 13. Incorrect electrical mains connection 3. contact specialized personnel in orderto check the connectionNo water in boiler 1. Mains tap closed 1. open the mains tap2. Clogged pump filter 2. replace the filter3. Motor driven pump not in operation 3. contact specialized personnelNo unit delivery 1. mains tap closed 1. open the mains tap2. motor driven pump out of order 2. contact specialized personnel3. clogged gigleur 3. contact specialized personnel4. burnt control box fuse 4. contact specialized personnel5. unit solenoid valve out of order 5. contact specialized personnel6. unit switch out of order 6. contact specialized personnelSteam fails to come out ofthe nozzle 1. too much water in boiler 1. see specific problem2. damaged resistance 2. contact specialized personnel3. clogged sprayer element 3. clean the sprayer element4. resistance saver engaged 4. reinsert the resistanceToo much water in the boiler 1. the motor driven pump remainsengaged 1. contact specialized personnel2. perforated exchanger 2. contact specialized personnel3. automatic charge solenoid valveblocked3. contact specialized personnelSigns of water leakage onbench 1. dirty drain tray 1. clean the try2. drainage pipe clogged or detached 2. replace the drainage pipe3. other leakage 3. contact specialized personnelWet coffee dregs 1. Grinding regulated too fine 1. Adjust grinding value2. Unit still cold 2. wait for the machine to reach thecorrect temperature3. Solenoid valve fails to discharge 3. contact specialized personnelCoffee dispensing too slow 1. grinding element set too fine 1. Adjust the grinder2. dirty filter-holder 2. replace the filter and undertake morefrequent filter-holder cleaning3. clogged unit 3. contact specialized personnel4. gigleur or solenoid valve partiallyclogged4. contact specialized personnelCoffee dispensing too fast 1. grinder is regulated too large 1. regulate the grindingCoffee delivered cold 1. Lime scale present on the exchangersor the resistances1. contact specialized personnel2. oxidized pressure switch contacts 2. contact specialized personnel3. defective electrical connection 3. contact specialized personnel4. partially burnt out resistance 4. replace the resistance elementCoffee delivered too hot 1. incorrect pressure switch calibration 1. regulate the pressure switch by meansof the relative screw (chap. 6.2)12 - MACHINE DISMANTLINGTo dismantle the machine we recommend that it is dismantled andthe parts separated according to the type of materials involved(plastic, metal, etc). The parts separated in this way are then to besent to the relative specialized disposal companies.