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7.2 Errors messages, SOLAR BOOSTER ExxH (electrical heated) models
If heating cannot be switched on or is switched off without any error messages, it is likely that the
overheat protection (pos. 11 on fold out page) has tripped. Unscrew the dust cap, and push the rod to
reset the overheat protection switch. If this error re-occurs, call Nilfi sk-ALTO service.
Error
Message
(red STOP light fl ashing)
Reason
Action
Pump oil level low
> Level of lubricant oil of HP
• Remove cabinet and top up
pump is at a low level
oil if no leakage is present.
• Call Nilfi sk-ALTO service if
oil is leaking or if water is
mixed in the oil (creamy
white
or
transparent)
Overload cut out
> Overload or short circuit of
• Call Nilfi sk-ALTO service.
SOLAR
BOOSTER.
> Missing phase in your instal.
• Call authorized electrician.
Water shortage
> Lack of water in heating tank
• See section “3.8 Venting”
• Check your water supply
– open?, suffi cient pressure?
• Check and clean inlet fi lter,
section
6.3.
Motor cut out
> Motor is not running
• Motor overheated – let
the SOLAR BOOSTER cool
down and retry. Check
pressure and check nozzle
size and clean nozzle if
necessary.
• Cooling of motor disturbed
– call Nilfi sk-ALTO service.
• Other motor problems – call
Nilfi
sk-ALTO
service.
E3
E2
E1
E10
