wallas 85 DT, Manual, Page: 85 / 306

en
Maintenance
Troubleshooting, locking indication
RELEASING THE LOCK:
1. When the lights are blinking, switch off
the main power at the battery, breaker or
in-line switch.
2. Switch the main power back on.
3. Press the power switch (for at least 2 s).
The yellow power indicator will light for 1-3
seconds.
4. When the yellow power indicator light
has gone out, press the power switch again
(for at least 2 seconds). The heater is turned
off.
5. Restart the heater normally.
5.2.1_en
The device locks itself after 2
unsuccessful starts.
If the heater has locked itself, you must
determine the cause for the locking before
releasing it.
The fuel line is empty.
Follow the fuel flow. You can
follow the movement of the fuel
through the translucent fuel line.
The fuel line is full.
The fuel pump does not pump
fuel.
The piston of the fuel pump is
blocked.
The piston makes weak ticking
sound/vibration when it’s moving
normally.
Knock the body of the pump to
get the piston to move again.
The filter is blocked. Change the filter to a new one.
Bad quality fuel.
Wrong fuel.
Change the fuel
Water in the fuel.
Clean the fuel and add the anti
ice agent according the
instructions of the supplier.
Bring the device in for service.
The glow plug has too weak
effect.
The fuel needle is blocked.
The burner is filled with crust.
There is a strong wind
pressure coming into the lead-
through.
Air leakage in the fuel system.
Tighten the connectors of the fuel
system.
The fuel has not reached the
burner yet.
Check the possible overflow of
the burner!
If there are several starting
attempts without successful start,
the burner may overflow.
Locking indication
FAULT INDICATION WITH
BLINKING LIGHTS
Yellow
Red
en
D20111
- 85 -
490539
85 Dt / Nordic Dt