Viessmann Vitobloc 200 EM-50/81 Operating Instructions Manual page 53

Trouble-shooting
error message fault clearance
tightness test fails
●
alternator overvolt-
●
age
emergency shut-
●
down
maintenance interval
●
exceeded
exhaust gas counter
●
pressure
faulty heating water
●
pump
fault caused by
●
knocking
maximum gas pres-
●
sure
faulty ignition
●
maximum oil level
●
faulty oil pressure
●
1)
an error message is deemed to have been repeated, when the same fault is indicated again with a new time, after function key F8 has been
pressed (i.e. after the time at which the key has been pressed).
Table 10 Plain text fault messages displayed on the module control of an CHP module Vitobloc 200 that cannot be acknowledged
by pressing function key F8
VITOBLOC 200 Operating instructions for the natural gas-fuelled CHP module
acknowledge fault with function key F8;
call customer service if error message
is repeated
acknowledge fault with function key F8;
call customer service if error message
is repeated
acknowledge fault with function key F8;
call customer service if error message
is repeated
acknowledge fault with function key F8;
call customer service if error message
is repeated
acknowledge fault with function key F8;
call customer service if error message
is repeated
acknowledge fault with function key F8;
call customer service if error message
is repeated
acknowledge fault with function key F8;
call customer service if error message
is repeated
acknowledge fault with function key F8;
call customer service if error message
is repeated
acknowledge fault with function key F8;
call customer service if error message
is repeated
acknowledge fault with function key F8;
call customer service if error message
is repeated
acknowledge fault with function key F8;
call customer service if error message
is repeated
possible cause of the fault
●
optional test device for the gas tightness
1)
●
gas valve(s) not right
●
alternator control defective
1)
●
emergency shut-down message
1)
(-X1/22-23): internal or external overtemper-
ature protection switch, external gas warning
device, fire alarm etc.
●
maintenance interval exceeded, plant blocks
1)
itself automatically
●
optional exhaust gas counter pressure moni-
1)
toring has tripped
●
external pump monitoring
1)
(-X1/28-29)
●
optional knocking monitoring has tripped
1)
●
optional maximum gas pressure monitoring
1)
●
gas pressure too high
●
ignition trigger has switched off
1)
●
short circuit in the ignition system
●
irregular ignition pick-up signals
●
optional maximum oil level monitoring has
1)
tripped
●
machine over-filled
●
automatic oil refill mechanism defective
●
oil pressure while machine does not run
1)
●
oil pressure transducer defective
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