Troubleshooting Information For Experts - EINHELL DHG 360 Originalbetriebsanleitung

Anleitung_DHG_360_SPK7___ 20.04.16 08:53 Seite 20
GB
Air filter (Fig. 7)
The air intake filter (A) must be replaced or cleaned
with soapy water after every 500 hours in operation or
sooner if necessary. Allow the air intake filter to dry
after it has been cleaned.
The two air discharge filters (B / C) must be replaced
after every 500 hours in operation or sooner if
necessary. Unscrew the filter cover (D) for this
purpose.
Fan blades (Fig. 8)
The fan blades (E) must be cleaned at least once
every heating season or more often if necessary.
Remove the dust and other dirt with a soft cloth. Make
sure that the fan blades are not bent. To replace the
fan blades, undo the screw (F) and pull the fan blade
off the motor shaft (G).
Fuel nozzle (Fig. 9a/9b)
The fuel nozzle (H) must be cleaned or replaced at
least once every heating season or more often if
necessary.
Clean the fuel nozzle from the front with compressed
air. To remove stubborn dirt, it can help to saturate the
fuel nozzle in clean fuel and wash it out. Take care not
to swap the two hoses (K / L).
Legend for the items in Figure 9a/9b:
Item K = air hose (connection)
Item L = fuel hose (connection)
Item M = ignition cable
Item N = ignition electrode
Item P = burner head
Ignition electrode (Fig. 10)
The ignition electrode (N) must be cleaned or
replaced after every 600 hours in operation or sooner
if necessary. Clean the ignition contacts (Q) carefully
with a wire brush. Check the distance between the
ignition contacts (Q). It must be 3.5 mm.
Photocell (Fig. 11)
The photocell (R) must be cleaned or replaced at
least once every heating season or more often if
necessary. Clean the front of the photocell with a
cotton cloth which has been saturated in alcohol.
When you insert the photocell, make sure it is
correctly positioned.
Fuel filter (Fig. 12)
Clean or replace the fuel filter (S) at least twice every
heating season or more often if necessary. The fuel
filter must be washed out with clean fuel.
Note: To undo the fuel filter, turn it 90° in counter-
clockwise direction.
20
Setting the pump pressure (Fig. 13)
The optimum pump pressure is quoted in the
technical data. While the equipment is working, use a
screwdriver to turn the setting screw (T) until the
pressure gauge (Item 8) indicates the optimum pump
pressure. Turning it clockwise will increase the
pressure, turning it counter-clockwise will decrease
the pressure.
15. Troubleshooting information for
experts
Problem
The flame ignites but after a short while the heater
switches off, the LED flashes and "E1" appears in the
display.
Possible cause
1. The pump pressure is not correct.
2. Soiled air filters.
3. Soiled fuel filter.
4. Soiled fuel nozzle.
5. Soiled photocell.
6. Photocell not fitted correctly.
7. Photocell is defective.
8. Poor electrical connection between the pcb and
the photocell.
Remedy
1. Adjust the pump pressure.
2. Clean or replace the air filters.
3. Clean or replace the fuel filter.
4. Clean or replace the fuel nozzle.
5. Clean or replace the photocell.
6. Adjust the photocell correctly.
7. Replace the photocell.
8. Check the electrical connection between the pcb
and the photocell.
Problem
The heater does not work at all or the fan motor runs
for only a short while. The LED flashes and "E1"
appears in the display.
Possible cause
1. No fuel in the tank.
2. The pump pressure is not correct.
3. Corroded ignition electrode or wrong distance
between the ignition contacts.
4. Soiled fuel filter.
5. Soiled fuel nozzle.
6. Moisture / water in the fuel or fuel tank.
7. Poor electrical connection between the
transformer and the pcb.