Nilfisk SH AUTO 5M [29/33] Auto booster

AUTO BOOSTER

Original Instructions

6.2 Error messages

If your AUTO BOOSTER does not heat the water although heating has been chosen for the actual pro-

gram step, the reason may be that the fuel container is empty or that one of the overheat melting fuses

has blown/cut out. The two fuses are located at the top of the boiler and MUST ONLY be exchanged by

an Nilﬁ sk-ALTO service technician.

Error Message Reason Action

Illegal sensor comb. > Lack of water • Check your water supply

– open?, sufﬁ cient pressure?

• Check and clean inlet ﬁ lter,

(see sect. 5.4).

> Defective or mal-adjusted • Call Nilﬁ sk-ALTO service.

ﬂ ow sensor

No ﬂ ame detected > No ﬂ ame is detected when it • Check your fuel supply,

should be present and reﬁ ll is necessary.

> Fuel ﬁ lter clogged • Call Nilﬁ sk -ALTO service.

> Fuel container empty • Reﬁ ll with fuel.

> Flame sensor soothed or • Call Nilﬁ sk -ALTO service.

defective

Illegal ﬂ ame detected > Flame detected when it should • Flame sensor not mounted

NOT be present in place. Mount sensor.

> Flame sensor defective • Call Nilﬁ sk -ALTO service

Pump oil level low > Shortage of oil in high • Top up with oil.

pressure pump

Water level low > Lack of water in water tank • Check your water supply

– open?, sufﬁ cient pressure?

• Check and clean inlet ﬁ lter,

(see sect. 5.4).

Inverter error > Cutting out of motor • Check of fan.

protection or thermal current • Check load of motor.

in motor • Check input voltage.

Each time a fault is present, a counter will show the number of times the fault has been registered.

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