30 English
! If malfunction still occurs, have device
checked by customer service.
! No line voltage, see "Appliance is not
running".
! Check exhaust temperature limiter; re-
duce it, if required.
Figure 17
Only HDS Super M / MX Eco:
! Check exhaust temperature limiter; re-
duce it, if required.
Figure 2 - Pos. 4
– Liquid softener tank is empty, due to
technical reasons a remainder stays in
the tank.
! Refill.
– Electrodes in the tank are dirty
! Clean the electrodes.
Figure 2 - Pos. 5
! Set the appliance switch to "0".
! Allow device to cool down.
Figure 17
! Check exhaust temperature limiter; re-
duce it, if required.
! Set the appliance switch to "I".
– No power
! Check power connection/conduit.
– Air within the system
Vent pump:
! Set dosing value for detergent to "0".
! With open hand spray gun turn device
on and off multiple times with the device
switch.
! Close and open the regulating spingle
(figure 9) with open hand spray gun.
Note
By dismantling the high pressure hose from
the high pressure connection the venting
process is accelerated.
! If detergent tank is empty, refill.
! Check connections and conduits.
– Pressure is set to MIN
! Set pressure to MAX.
– Sieve in the water connection is dirty
! Clean sieve.
! Clean the fine filter; replace it, if neces-
sary.
– Amount of water supply is too low.
! Check water supply level (refer to tech-
nical data).
– Pump leaky
Note
3 drops/minute are allowed.
! With stronger leak, have device
checked by customer service.
– Leak in the high pressure system
! Check high pressure system and con-
nections for tightness.
! Leave device running with open deter-
gent dosage valve and closed water
supply, until the swimmer tank is
sucked empty and the pressure falls to
"0".
! Open the water supply again.
If the pump still is not sucking in any deter-
gent, it could be because of the following
reasons:
– Filter in the detergent suck hose dirty
! Clean filter.
– Backflow valve stuck
Figure 15
! Remove the detergent hose and loosen
the backflow valve using a blunt object.
– Fuel tank empty
! Refill.
– Water shortage
Indicator lamp liquid softener glows
Engine control lamp glows
Appliance is not running
Device is not building up pressure
Device leaks, water drips from the
bottom of the device.
Device turns on and off while hand
spray gun is closed
Device is not sucking in detergent
Burner does not start