Viessmann Vitobloc 200 EM-50/81 Operating Instructions Manual page 51

Trouble-shooting
error message fault clearance
cooling water tem-
●
perature
●
maximum exhaust
●
gas temperature
●
starting speed
●
< 50 rpm
firing speed
●
rpm
speed range
●
overspeed
●
underspeed/
●
pick-up
synchronization
●
faulty
alternator undervolt-
●
age
alternator overcur-
●
rent
alternator load im-
●
balance
reverse power
●
faulty output regula-
●
tor
faulty alternator
●
contactor
VITOBLOC 200 Operating instructions for the natural gas-fuelled CHP module
let the engine cool down
acknowledge fault with function key F8;
call customer service if error message
is repeated
let the exhaust gas temperature cool
down below 300 °C (display: see Fig. 3)
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
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
●
temperature of the engine cooling water too
high, no heat reduction on site
1)
●
exhaust gas temperature exceeds the limit
●
spark plug defective, ignition coil defective
●
ignition cables defective, ignition trigger
1)
defective
●
engine setting too fat
●
sensor defective
●
starter does not engage
1)
●
battery empty, starter defective
●
pick-up defective, cable breakage
●
engine does not start
1)
●
throttle does not open
●
air filter dirty
●
engine run erratically
1)
●
speed control system defective, worn out or
incorrectly set
●
speed control system defective, worn out or
1)
incorrectly set
●
engine stalled or pick-up defective
1)
●
engine speed erratic
1)
●
mains frequency erratic
●
engine speed too low
1)
●
alternator control defective
●
alternator overloaded or alternator control
1)
defective
●
different phase loads or contact problems on
1)
site
●
gas, ignition or speed control problems,
1)
alternator driven by the mains
●
output deviation, control system defective
1)
●
dirty exhaust gas heat exchanger and/or air
filter
●
alternator contactor does not open correctly
1)
or feedback defective
51