Herz pelletfire 20/20, Operating Instructions Manual

Page: 76 / 100

9 Menu navigation and adjustment values
76
No. Fault report Cause of fault Fault correction
084 GRATE CLEANING 3
Grate was opened during the
combustion
Check grate cleaning motor
Check grate linkage
Check grate cleaning end switch
085 SUCTION MODE
maximum suction cycles exceeded
(with suction discharge)
maximum suction time exceeded (with
internal suction hopper)
Adjust suction cycles
Check discharge system (motor, screw)
Check fuel quality
086 SUCTION VALVE Vacuum flap could not be opened
Check vacutrans damper
Check end switch vacutrans damper
✆
- contracting party
087 ASH CONTAINER Ash container door is opened
Connect ash container
Close ash container door
088
BACK FLOW SET
PWM
if PWM module is not recognized
▪
Burn out and boiler off
▪
acknowledges itself
090
COMB. ROOM
SENSOR Burning chamber door end switch
active; burning chamber door is open
Close burning chamber door
093
ENDSW. ROOM
DISCHARGE Room discharge system end switch
active
▪
Blockage; remove trapped fuel
▪
Check fuel quality
▪
Clean intermediate hopper level sensor
094 AUTO IGNITION Automatic ignition does not work
▪
No Fuel
▪
Ignition element defective
095 CHECK ASH BOX
Set up ash container maintenance
interval exceeded
Check ash container
096 BURNER STOP
Boiler operation mode „system stop“
active
097 Backup config Fault when loading backup
✆
- contracting party
098
BOILER SENSOR
BURNER Failure additional boiler sensor; cable
break; short-circuit; failure connection
▪
Check sensor, replace as necessary
▪
Check plug, replace as necessary
▪
Check wiring incl. connections, replace
as necessary
▪
✆
- contracting party
099 STL Burner
Boiler temperature has exceeded the
maximum permissible boiler
temperature
▪
Cool down boiler (< 75 °C)
▪
Quit STL
104 Boiler Spreading
Boiler spread in nominal load is to low
(smaller 8k)
▪
Reduce pump speed (step) to get more
spread
111
HEAT EXCHANGER
CLEANING
Heat exchanger cleaning does not
work
Heat exchanger motor does not work
▪
Check heat exchanger cleaning
▪
Manual cleaning of the heat exchanger
✆
- contracting party
125 EXT.POWER MAX
if signal at ext. power limit drops
below 1.3V
✆
- contracting party
129
Suction turbine-
HOURS -Exceeding the pellet-sucker interval
time (400h)
▪
execute maintenance
130 ignition fan - hours
if ignition fan operating hours have
been exceeded
execute maintenance
138
Suction hopper
CAN communication to the suction
container module was interrupted or
the module was not found Check module CANBus connection
Check module
✆
- contracting party
139
Door Storage room
Digital input storage room door has
responded
Close storage room door
140
MP EXT. AS
Digital input motor protection
discharge has responded
motor protection acknowledges
Check discharge system (motor, screw,...)
Remove debris
141
ES EXT. AS
Digital input end switch discharge
screw has responded
Check discharge system (motor, screw,...)
Remove debris