Viessmann KOB KPM-DYN 45, Operating And Maintenance Instructions Manual, Page: 65 / 80

5726 783 PYROMAT DYN45 - DYN85 Issue 1.0 Page 65 of 72
No. Error report display Error sensor Possible cause Check, rectification
20 Water level in
extinguishing water
container
Function key F3
illuminates red.
ƒ
Level float switch in
extinguishing water container
ƒ
Too little water in extinguishing
water container. 1. Fill the extinguishing water container with
water.
2. Cancel error with OK.
25 Light barrier - ember
monitoring system
Function key F3
illuminates red.
ƒ
Light barrier for ember
monitoring system
ƒ
Sight glasses dirty, ash build-up in
the apertures.
ƒ
Defective error sensor.
1. Remove and clean sight glasses on both
sides. Remove dirt and ash deposits from the
apertures.
2. Cancel error with OK.
26 Light barrier - feed
auger
Function key F3
illuminates red.
ƒ
Light barrier in feed auger
dosing container
ƒ
Light barrier dirty.
ƒ
Blockage in the dosing container.
1. Clean light barrier.
2. Clear blockage in the dosing container.
3. Cancel error with OK.
96 Feed auger pipe too hot
ƒ
Temperature sensor on the feed
auger
ƒ
Power failure.
ƒ
Resultant faults caused by over-
temperature.
ƒ
Ember monitoring system light
barriers dirty.
1. Contact an electrician.
2. Check light barriers at ember bed.
3. Cancel error with OK.
81
to
93 BUS fault, no
connection to. . .
Function key F3
illuminates red.
ƒ
Data transmission line, bus
connection
ƒ
Bus connection interrupted. 1. Check the connectors.
2. Defective data transmission line? Have data
transmission line replaced.
3. Call suppliers.