I’m not aware of codes beyond the ones listed in the owner’s manual, that is :
Display Error Codes
• “AL01”: Temperature probe not connected or short circuit (broken)
• “AL02”: Temperature probe circuit break (not connected)
• “AL10”: Service Boiler filling time out (took longer than allowed)
• “AL11”: mains fill time for internal tank timeout ( took longer than allowed) - It also shows up when the water tank level is low.
The AL07 error is a protective feature to protect the pump, or against flooding and will stop the pump after a certain time. To reset this error, simply switch the machine off and on again. If it keeps happening, look for a kinked blocked feed hose or other problem. If it keeps happening even though the pump only runs briefly, contact your dealer for support. It is possible an A7 will pop up once or twice during a refill after draining the service boiler, if it does simply switch the machine off (wait 10 seconds) and switch on again