Diagnostic - Gas Error History - Gas Reset - Rational SelfCookingCenter SCC Training Manual

Diagnostic - Gas Error History - Gas Reset

Whenever the unit is showing Gas reset, always check the gas error history. Indicated gas errors can can guide you
to faster troubl shooting
Note: be aware service errors and gas errors are different.
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
1-15, 21, 23, 31 more than 5x:
33, 36, 37
and additional Service 32
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
17, 18, 27, 28 for more than 5x
and additional Service 33
19, 29 for more than 5x
and additional Service 33
20, 30
and additional Service 33
22, 32
and additional Service 33
39, 42 for more than 5x
and additional Service 32
34
35
and additional Service 32
38
and additional Service 60
After disassembling and reassembling of the burner always perform flue 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
The most common gas errors are:
19(Hot air), 29(Steam)
22(Hot air), 32(Steam)
When you have changed the ignition box, please always reset the Gas Error History!
Please reset the gas error history after changing the ignition box!
V08 en, SCC
Action
change ignition box
change ignition box
Action
change only ignition box if the above components are ok.
Perform flue gas analysis, check ignition electrode distances, ignition wire and
burner. Clean Burner. If ok, change ignition box
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.
check for gas supply and function of gas valve (22), check electrode distances,
ignition wire or soiled burner head
Check ignition electrode distances, ignition wire and burner. If ok, change igni-
tion box
L1 – N was changed
check voltage and frequency, only important when Service 32 was recorded
only important when Service 60 was recorded, contact Rational for software
repair.
Ignition electrode distance, burner blocked from inside (units 2004-2011)
no flame detection after ignition, check Gas main stop valve, Gas supply,
Gas pressure, Gas valve
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