24
2
LAMP
OPTIMA DM(DMF)
OPTIMA EST
Description
Water shortage in the water tank
Cause
&
Remedy
1) Water shortage.
→ Refill water to the water tank.
2) Malfunction of the floater
level switch in the water
tank.
→ Disconnect one of the wires to the
floater level switch. If the related
alarm stops and the machine
operates, replace the floater level
switch and reconnect wires in
position.
3
LAMP
OPTIMA DM(DMF)
OPTIMA EST
Description
Fuel shortage in the fuel tank
Cause
&
Remedy
1) Fuel shortage.
→ Refill fuel to the fuel tank.
2) Malfunction of the floater
level switch in the fuel tank.
→ Disconnect one of the wires to the
floater level switch. If the related
alarm stops and the machine
operates, replace the floater level
switch and reconnect wires in
position.
4
LAMP
OPTIMA DM(DMF)
OPTIMA EST
Description
- Water level in the steam vessel is low.
- Water probe sensors fail to detect the water level in the steam vessel.
Cause
&
Remedy
1) Water filter clogging.
→ Check or replace the water filter.
2) Malfunction of the water
pump.
→ Check or replace the water pump.
3) Malfunction of the water
probe sensors.
→ Clean scale build-up from the tip of
the water probe sensors with sand
paper or replace if necessary.