Hansgrohe Axor Montreux 16820 Series Instructions For Use/Assembly Instructions page 7

Fault
Insufficient water
Crossflow, hot water being forced
into cold water pipe, or vice versa,
when mixer is closed
Spout temperature does not
correspond with temperature set
Temperature regulation not possible - Temperature regulator dirty or
Safety stop button not operating
Diverter stiff
Diverter leaking
English
Cause
- Supply pressure inadequate
- Regulator filter dirty
- Shower filter seal dirty
- Backflow preventers dirty or
leaking
- Thermostat has not been adjusted
- Hot water temperature too low
calcified
- For new installations: basic body
incorrectly connected (should be:
cold right, hot left) or installed with
180º rotation
- Spring defective
- Button calcified
- Cartridge defective
- Dirt or sedimentation on valve seat. - Clean valve seat or exchange
Assembly see page 60
Remedy
- Check water pressure (If a pump
has been installed check to see if
the pump is working).
- Clean filters
- Clean filter seal between shower
and hose
- Clean backflow preventers,
exchange if necessary
- Adjust thermostat
- Increase hot water temperature to
42 ºC to 65 ºC
- Clean temperature regulator,
exchange if necessary
- Install function block turned through
180º
- Clean spring and/or button,
exchange if necessary
- Exchange cartridge
diverter