V08 en, SCC - 80 -
CM_P - Diagnostic - Gas Error History
Please also refer to Training Manual Gas!
Gas errors are triggered by the ignition box itself.
Service 32 and Service 33 are a result of individual gas errors during operation of the gas unit.
Gas errors can be grouped into 2 sections
A)
Likely Ignition box failure
Gas error number Action
1-15, 21, 23, 31 more than 5x: change ignition box
33, 36, 37
and additional Service 32
change ignition box
B)
The following gas errors have most likely a reason in electrode distances, ignition wire or soiled burner head
(units 2004 - 2011):
Gas error number Action
17, 18, 27, 28 for more than 5x
and additional Service 33
change only ignition box if the above components are ok.
19, 29 for more than 5x
and additional Service 33
Clean Burner head, check ignition electrode distances, ignition wire and
burner. If ok, change ignition box. Perform ue gas analysis,
20, 30
and additional Service 33
Check power supply 3 wire cable to gas blower for continuity (check TI
1426). Change ignition box, if no result, re-install ignition box and change
blower.
22, 32
and additional Service 33
check for gas supply and function of gas valve (22), check electrode dis-
tances, ignition wire or soiled burner head
39, 42 for more than 5x
and additional Service 32
Check ignition electrode distances, ignition wire and burner. If ok, change
ignition box
34 L1 – N was changed
35
and additional Service 32
check voltage and frequency, only important when Service 32 was re-
corded
38
and additional Service 60
only important when Service 60 was recorded, contact Rational for so-
ware repair.
Aer disassembling and reassembling of the burner always perform ue gas analysis.
When changing the steam burner always use a new white burner gasket:
Index E-G: 72.00.048, Index H-I: 72.00.077
When you have changed the ignition box, please always reset the Gas Error History!
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