DreamStation error codes

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This is a listing of CPAP Error Codes and descriptions for Philips-Respironics DreamStation CPAP, Bi-level and ASV machines.

We do have the Service & Repair manuals for these and other CPAP machines available. To access them, you will need to join the Apnea Board Forum, log in, and then go to our Private Files and Links area, below the forums. In that forum, there is a post that says "Links to Members-Only Files". If you open that post, you can click on our current link to the Members Only Files. Please keep in mind that we do not have additional Service/Repair Manuals other than those listed on our Members Only Files page.

Levels of Error Codes

The four Error levels are described as follows:

Error Level Description
STOP The error information is recorded in NVRAM and the unit is placed into Safe State. The only functionality available to the user is serial communication, turning off the audible alarm via a key press and removing power.
REBOOT The error information is recorded in NVRAM and the unit is rebooted. The fifth occurrence of a REBOOT level error within a 24 hour period (while power is maintained), will be promoted by the system to a STOP level error.
ABORT The error information is recorded in NVRAM. The fifth occurrence of a ABORT level error within a 24 hour period (while power is maintained) will be promoted by the system to a STOP level error. This error is similar to a Reboot-Level Error with the exception that the system is unable to handle the error prior to the reset, e.g. watchdog timeout.
CONTINUE The error information is recorded in NVRAM and the unit continues to operate without noticeable alteration.



Error Codes

Code Error Name Error Level Failed Component Actions
E-0 ERR_NONE STOP N/A N/A
E-3 ERR_INT_RAM REBOOT CPU 1. If error was NOT Last Stop Error, clear error log and test.

2. If error was Last Stop Error, replace PCA and test.

E-4 ERR_NULL_PTR REBOOT CPU 1. If error was NOT Last Stop Error, clear error log and test.

2. If error was Last Stop Error, replace PCA and test.

E-6 ERR_STATE_MACHINE REBOOT CPU 1. If error was NOT Last Stop Error, clear error log and test.

2. If error was Last Stop Error, replace PCA and test.

E-7 ERR_SOFTWARE REBOOT CPU 1. If error was NOT Last Stop Error, clear error log and test.

2. If error was Last Stop Error, replace PCA and test.

E-8 ERR_CRC_FAILED STOP CPU Replace PCA and retest
E-10 ERR_WDOG_TEST_RAM REBOOT CPU 1. If error was NOT Last Stop Error, clear error log and test.

2. If error was Last Stop Error, replace PCA and test.

E-11 ERR_WDOG_TEST REBOOT CPU 1. If error was NOT Last Stop Error, clear error log and test.

2. If error was Last Stop Error, replace PCA and test.

E-15 ERR_CYCLE_HANDLER_OVERRUN REBOOT CPU 1. If error was NOT Last Stop Error, clear error log and test.

2. If error was Last Stop Error, replace PCA and test.

E-19 ERR_WDOG_TIMEOUT ABORT CPU 1. If error was NOT Last Stop Error, clear error log and test.

2. If error was Last Stop Error, replace PCA and test.

E-20 ERR_MOTOR_SPINUP_FLUX_LOW REBOOT 1. Motor connection

2. Blower Box
3. PCA

1. Reseat motor connector, clear error log and test.

2. If error still occurs, replace blower and retest.

3. If 2nd retest fails, replace PCA.

E-21 ERR_MOTOR_VBUS_HIGH STOP PCA Replace PCA and retest
E-22 ERR_MOTOR_FLUX_MAGNITUDE REBOOT 1. Motor connection

2. Blower Box
3. PCA

1. Reseat motor connector, clear error log and test.

2. If error still occurs, replace blower and retest.

3. If 2nd retest fails, replace PCA.

E-23 ERR_MOTOR_OVERSPEED REBOOT PCA 1. If error was NOT Last Stop Error, clear error log and test.

2. If error was Last Stop Error, replace PCA and test.

E-24 ERR_MOTOR_SPEED_REVERSE REBOOT PCA 1. If error was NOT Last Stop Error, clear error log and test.

2. If error was Last Stop Error, replace PCA and test.

E-27 ERR_MOTOR_RL_NOCONVERGE STOP 1. Motor connection

2. Blower Box
3. PCA

1. Reseat motor connector, clear error log and test.

2. If error still occurs,replace blower and retest.
3. If 2nd retest fails, replace PCA.

E-28 ERR_NEGATIVE_QUADRATURE_VOLTAGE_VECTOR REBOOT 1. Motor connection

2. Blower Box
3. PCA

1. Reseat motor connector, clear error log and test.

2. If error still occurs, replace blower and retest.
3. If 2nd retest fails, replace PCA.

E-29 ERR_VBUS_GAIN_ZERO REBOOT PCA 1. If E9 was not recorded, clear error log and test.

2. If E9 was recorded, replace PCA and test.

E-30 ERR_MOTOR_SPINUP_FLUX_HIGH REBOOT 1. Motor connection

2. Blower Box
3. PCA

1. Reseat motor connector, clear error log and test.

2. If error still occurs, replace blower and retest.
3. If 2nd retest fails, replace PCA.

E-34 ERR_MOTOR_TYPE_UNKNOWN STOP PCA Replace PCA and retest.
E-35 ERR_MOTOR_BLOCKED_INLET CONTINUE 1. Air Path

2. PCA
3. Blower Box

1. Clear air path including filter and test.

2. If test fails, replace PCA and retest.
3. If retest fails, replace blower box and retest.

E-36
E-40
E-41
E-48
E-50
E-51
E-53
E-55
E-56
E-71
E-72
E-73
E-74
E-82
E-83
E-84
E-85
E-87
E-93
E-94
E-100
E-101
E-105
E-106
E-107
E-108
E-130
E-131
E-132
E-133
E-150
E-151
E-152
E-153
E-154
E-155
E-170
E-171
E-172
E-173
E-174
E-175
E-176
E-180
E-181
E-182
E-183
E-190
E-191
E-192
E-193
E-200
E-201
E-202
E-210
E-211
E-220
E-221
E-222
E-230
E-231
E-240
E-241
E-250
E-260
E-261
E-262
E-270
32767


EDITOR NOTE: [need to add additional error codes from Service Manual]

See Also

Philips-Respironics error codes (for 50 & 60-series REMstars)

REMstar error codes (for older, pre-2007 REMstars)

REMstar smart card error codes