Malfunctions
Thermo E 200/320
60
Table: Flash codes
No. of
pulses
Malfunction
Description
0
CD malfunction
Control device malfunction
1
No start within safety time
No start within safety time
2
Flame interruption
Flame interruption during burner operation, restart
unsuccessful
3
Overvoltage / undervoltage
Overvoltage
Undervoltage
4
Unexpected light detection in initial or purge cycle
Unexpected light (flame guard bright in purge cycle 2)
Unexpected light (flame guard bright before ignition)
5
Flame guard defective
Flame guard short-circuited
Flame guard disconnected
6
Temperature sensor / overheating protection defective
Temperature sensor short-circuited
Temperature sensor disconnected
Temperature sensor / overheating protection implausible
Overheating protection short-circuited
Overheating protection disconnected
7
Solenoid valve defective
Solenoid valve short-circuited
Solenoid valve disconnected
8
Burner Motor / Nozzle block pre-heater defective
Burner Motor short-circuited
9
Circulating pump defective
Circulating pump short-circuited
10
Overheating protection has tripped
Overheating T>125°C
11
Electronic ignition unit defective
Electronic ignition unit short-circuited
Electronic ignition unit disconnected
12
Heater lock-out
Flame interruption counter threshold reached
Heater lock-out - release required
Malfunction counter threshold reached
