REMKO SLV11-88-2 - Manual (Page 14)

14
Troubleshooting
Instructions for the operator
If a problem occurs, the following basic prerequisites for
proper operation should first be checked:
à Is the power connection OK?
à Is the fuel supply OK?
à Are all shut-off mechanisms open?
à Are all control and safety mechanisms functioning
properly?
Information about burner malfunctions
If a problem occurs in the burner, the LED in the reset
button of the control relay lights up continuously. Every
10 seconds, the display is interrupted by a blinking code
(see below) that provides information about the cause of
the malfunction.
à The malfunction is cleared by pressing the clear but-
ton once (error log).
à Once the problem has been eliminated, the burner
tries to start again.
Remember that the burner start is delayed by the oil
preheater up to model size SLV 33!
à If the burner switches off again due to a malfunction
while trying to restart, the unit may only be reset after
a waiting 5 minutes.
à No further resets may be performed after this be-
cause there is a danger of explosion and the
forced-air oil burner and warm air generator can be
damaged.
à In this case, please notify an authorised service cen-
tre.
The magnetic valve does not open
à Magnetic valve is defective
à Photoelectric cell contains external light
à Cable with plug to the magnetic valve does not have
any contact
à Control relay defective
A flame does not form
à Not enough fuel supply
à Wax buildup in the fuel system
à Dirty oil filter
à Air in the fuel system
à Oil pump or pump coupling defective
à Dirty pump filter
à Dirty oil nozzle
Flame does not continue to burn after the safety pe-
riod has elapsed
à Photoelectric cell is dirty or defective
à Swivel disc is sooty
à Photo cell is not receiving a flame signal
à Burner burns with an insufficient amount of air (flame
is too dark)
à Control relay defective
Flame does not keep burning after the ignition time
has elapsed
à Flame goes out or does not burn evenly.
Pump pressure too low, possible that there are air
bubbles in the fuel system.
Instructions for authorised personnel
= short pulse = long pulse = pause
Description of the signals
Blinking codes to diagnose problems
Error message Blinking code Cause of problem
Malfunction
deactivation No flame detected within
the safety period
External light
disturbance
External light during the
monitored phase, sen-
sors possibly defective
Release thermostat
time-out FT contact does not
close within 400 sec.
Manual / external
malfunction
deactivation
Lit up Dark Blinking code Dark phase
approx. 10 sec. approx. 0.6 sec. approx. 1.2 sec.
Control relay DKW 972/976 with LED display
Sequence flow
These repeat until the problem is eliminated
G Burner repair and maintenance work may only be
performed by authorised personnel for safety rea-
sons!
G
Prior to all work on the forced-air oil burner, all
lines must be removed from the power supply!
The burner motor does not start
à No current supply.
Check fuses, main switch, thermostat, (clock timer),
safety temperature limiter.
à Oil preheater (up to SLV 33) defective.
à Burner motor defective.
à Oil pump defective, pump cranks with difficulty.
à Control relay defective.
No ignition
à Ignition electrode defective or incorrect distance to the
ignition electrodes.
à Ignition cable or ignition transformer defective.
à Control relay defective.