5.4
Error Code Output
(Air Top 2000 Diagnosis)
When equipped with a combination or standard timer a
malfunction will cause an error code output to the dis-
play of the timer for indication.
NOTE
When equipped with a control element the error code
output is indicated by flashing of the operating indica-
tor/error code indication. The number of flash pulses
corresponds to the number indicated in the table below.
After a quick pulse train there will always be an error
code output.
Error code output on display of combination or
standard timer
F
01
No start (after 2 attempts)
F
02
Flame out (at least >5)
F
03
Voltage too low or too high
F
04
Premature flame detection
F
05
Flame sensor open or short circuit
F
06
Temperature sensor open or short circuit
F
07
Dosing pump open or short circuit
F
08
Fan motor open or short circuit or
wrong speed
F
09
Glow plug open or short circuit
F
10
Overheating
503
Air Top 2000
5 Troubleshooting