Gustav Nolting NG-LE Serie Manuel D'utilisation page 14

8. POSSIBLE MALFUNCTIONS AND THEIR CAUSES :
Malfunction:
Unit does not start
Unit starts up, there is ignition but the
solenoid valve does not open ...
malfunction shut-down
Unit starts up, no ignition, solenoid
valve opens, gas flows
in......malfunction shutdown
Unit starts up, ignition present,
solenoid valve opens, gas flows in
and is ignited...after several seconds
malfunction shutdown occurs
Unit starts up, ignition present,
solenoid valve opens, no gas flows
In.......malfunction shut-down
Unit occasionally goes to malfunction
All manuals and user guides at all-guides.com
Cause:
Room thermostat is incorrectly
set
No room thermostat is connected
No power
Gas pressure
Defective relay
Safety thermostat has triggered
or is defective
Control unit is defective
Infrared flicker detector gives a
flame signal during the lead-in
time (red LED), although no
flame has been established
Differential
monitor did not trigger
Ignition electrode defective
Ignition gap to large
Ignition cable defective
Control unit is defective
Infrared flicker sensor fouled
or defective
Control unit is defective
Regulator is defective
Gas pressure
Nozzle fouled
Infrared flicker sensor
Ignition
Switching unit
Gas pressure
- 13 -
Remedy:
Check setting
Bridge on the terminal strip
Check the hook-up plug
Check the power supply
Inspect
Replace
Release or replace
Replace
Infrared flicker sensor
defective or is exposed to
outside light
pressure
Check
Replace
Reduce
Replace
Replace
Clean, replace
Replace
Replace
Inspect
Clean, replace
Inspect
Inspect
Check for loose contacts
Inspect