26
8
LAMP
OPTIMA DM(DMF)
OPTIMA EST
Description
Flame sensor error
Cause
&
Remedy
1) Flame sensor does not
detect a flame
→ Check for any damage to the flame
sensor and replace if necessary.
2) Fuel filter clogging or fuel
pump malfunction
→ Check the fuel filter for any
settled/floating debris and replace.
Check for fuel injection from the fuel
pump and replace if necessary.
3) Malfunction of the
electrodes/fuel nozzle or
blower fan
→ Carry out a visual check and replace
if necessary
4) Malfunction of the
pressure switches
→ Check for any damage to the
pressure switches and replace if
necessary.
9
LAMP
OPTIMA DM(DMF)
OPTIMA EST
Description
24 hours continuous operation.
Cause
&
Remedy
1) 24 hours continuous
operation.
→ Turn off and on the Power Switch.
10
Description
Rise in pressure above 8.5 bar (123.2 psi)
Cause
&
Remedy
1) Malfunction of the pressure
switches
→ Check for any damage to the pressure
switches and replace if necessary.
2) 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.
3) Use of deionized water or
reverse osmosis water
(below 15 ppm)
→ Use of normal tap water
(above 15 ppm)