IBM 7133 D40 Service Manual page 111

Step 20. (from step 19)
Is the display showing the 7133 ID and an error ID alternately?
NO Go to step 21 on page 94.
YES In Table 6, find the error ID that is being displayed, and note its
related SRN. Then, go to the table in "Service Request Numbers
(SRNs)" on page 75 and do the actions for that SRN.
Table 6. Error IDs and Their Related SRNs
Error ID See SRN/Information
BP1 80241
BP16 80242
BP4 80243
BP5 80244
BP8 80245
BP9 80246
BP12 80247
BP13 80248
CODE 80210
COLD 80253
COOL 80254
CTRL 80210
FAN1 80231
FAN2 80232
FAN3 80233
HOT 80251
OPNL 80211
POST-FAIL-XXXX 80210
Where XXXX=
XROM WDOG IROM
IRAM LED! I2C
RTC1 RTC2 TIME
UART FAN XRAM
PSU1 80221
PSU2 80222
SLOT 80260
WARM 80252
Note: If the COLD or HOT error ID remains for four minutes, the
internal dc power switches off (that is, the 7133 enters
Standby mode).
Chapter 2. Problem Determination Procedures
93