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The search for the problem has continued. A replacement door lock did not solve the problem. What seems to be unusual with this machine is that it has two pumps, an outlet pump which is working fine, but hidden at the back of the machine is a circulating pump which drives the Zanussi Jet...

My daughter has a ZJ1217 front loader. It has worked well for five years but just stopped mid cycle with the Start/Pause button flashing. Have cleaned out the filter, released door and drained out, turned on/off a few times,but the condition remains. Looked inside and had time to check one...

Vaillant describe F.22 as 'dry fire' in their Installation and Service book and give the following causes ... Too little water in the appliance Water pressure sensor defective Cable to pump or water sensor defective Pump blocked or defective Pump output too low On the one occasion I...

You are right of course with the exact definition of F.75. I have had an F.22 (dry fire) , but F.75 happens all the time. The pressure sensor has an orange coloured base , so will follow up your suggestion and ask Vaillant to replace this (under 2 year warranty) Hope to solve this...

The boiler was installed in 2006 and after a period of 6 months satisfactory working now suffers continually from a failure to fire up with error code F.75 (insufficient water pressure) A water pressure of 1.6 -1.7 bar on the boiler digital display is required to get it started. This...