Philips CPAP Error Codes
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Featured codes
- E-10 — Watchdog RAM test failed (ERR_WDOG_TEST_RAM). Error level: REBOOT; failed component:
- E-100 — Humidifier no heat detected (ERR_HUMID_NO_HEAT). Error level: CONTINUE; failed compon
- E-101 — Humidifier maximum temperature exceeded (ERR_HUMID_MAX_TEMP). Error level: CONTINUE;
- E-105 — Humidifier ambient/communication error (ERR_HUMID_AMBIENT_COMM). Error level: CONTINU
- E-106 — Heated tube maximum temperature exceeded (ERR_HEATED_TUBE_MAX_TEMP). Error level: CON
- E-107 — Heated tube disconnected (ERR_HEATEDTUBE_DISCONNECT). Error level: CONTINUE. Clear th
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Safe checks with an external tool or supply
These pages list the check you can do from outside the unit, with an optional external tool or maintenance supply. None of them repair an internal fault.
- E-35 — E-35 is DreamStation error ERR_MOTOR_BLOCKED_INLET, a CONTINUE-level error (the device continues operation but…
Model-matched external accessories
These are external user-replaceable supplies, not internal repairs. Check your exact device model before ordering.
- DreamStation 1-compatible disposable filters — External user-replaceable filters only. Confirm the exact DreamStation model before ordering; this does not repair an internal device fault. View on Amazon →
- DreamStation 2-compatible disposable ultra-fine filters — Disposable external ultra-fine filter only. Confirm the exact DreamStation 2 device and filter type; this does not repair an internal device fault. View on Amazon →
Related troubleshooting guides
Manufacturer manuals
- Philips Respironics DreamStation Service & Technical Reference Manual (1117539, Ver. 18), Section 6: Error Codes
- Philips Respironics DreamStation Service & Technical Reference Manual (mirror copy, Section 6: Error Codes)
- Respironics DreamStation Service & Technical Reference Manual - ManualsLib hosting
- Philips Respironics DreamStation Service & Technical Reference Manual (doc 1117539, Ver. 18), Sec. 6.4 Device Error Codes
- Respironics DreamStation Service & Technical Reference Manual (ManualsLib hosting, same doc 1117539)
- Philips Respironics DreamStation Service & Technical Reference Manual (1117539, VER. 18), Section 6.4 Device Error Codes
- Respironics DreamStation Service & Technical Reference Manual (hosted at ManualsLib), Troubleshooting and Error Codes chapter
E codes
- Philips E-10 error code
Watchdog RAM test failed (ERR_WDOG_TEST_RAM). Error level: REBOOT; failed component: CPU. If the error was NOT the Last Stop Error, clear the error lo… - Philips E-100 error code
Humidifier no heat detected (ERR_HUMID_NO_HEAT). Error level: CONTINUE; failed component: Heater Plate. Clear the error log and test; if the test fail… - Philips E-101 error code
Humidifier maximum temperature exceeded (ERR_HUMID_MAX_TEMP). Error level: CONTINUE; failed component: Heater Plate. Clear the error log and test; if … - Philips E-105 error code
Humidifier ambient/communication error (ERR_HUMID_AMBIENT_COMM). Error level: CONTINUE; failed component: PCA. Clear the error log and test; if the te… - Philips E-106 error code
Heated tube maximum temperature exceeded (ERR_HEATED_TUBE_MAX_TEMP). Error level: CONTINUE; failed component: Heated Tube. Clear the error log and tes… - Philips E-107 error code
Heated tube disconnected (ERR_HEATEDTUBE_DISCONNECT). Error level: CONTINUE. Clear the error log and test; verify the heated tube is properly connecte… - Philips E-108 error code
Humidifier disconnected (ERR_HUMIDIFIER_DISCONNECT). Error level: CONTINUE. Clear the error log and test; verify the humidifier is properly seated and… - Philips E-11 error code
Watchdog test failed (ERR_WDOG_TEST). Error level: REBOOT; failed component: CPU. If the error was NOT the Last Stop Error, clear the error log and te… - Philips E-130 error code
Task watchdog timeout (ERR_TASK_WDOG_TIMEOUT). Error level: REBOOT; failed component: PCA. If the error was NOT the Last Stop Error, clear the error l… - Philips E-131 error code
Window watchdog timeout (ERR_WIN_WDOG_TIMEOUT). Error level: ABORT; failed component: PCA. If the error was NOT the Last Stop Error, clear the error l… - Philips E-132 error code
Window watchdog test failed (ERR_WIN_WDOG_TEST). Error level: REBOOT; failed component: PCA. If the error was NOT the Last Stop Error, clear the error… - Philips E-133 error code
Window watchdog RAM test failed (ERR_WIN_WDOG_TEST_RAM). Error level: REBOOT; failed component: PCA. If the error was NOT the Last Stop Error, clear t… - Philips E-15 error code
Cycle handler overrun (ERR_CYCLE_HANDLER_OVERRUN). Error level: REBOOT; failed component: CPU. If the error was NOT the Last Stop Error, clear the err… - Philips E-150 error code
CPU non-maskable interrupt (ERR_CPU_NMI). Error level: ABORT; failed component: PCA. Replace the PCA and test.… - Philips E-151 error code
CPU hard fault (ERR_CPU_HARD_FAULT). Error level: ABORT; failed component: PCA. Replace the PCA and test.… - Philips E-152 error code
CPU memory management fault (ERR_CPU_MEM_MANAGE_FAULT). Error level: ABORT; failed component: PCA. Replace the PCA and test.… - Philips E-153 error code
CPU bus fault (ERR_CPU_BUS_FAULT). Error level: ABORT; failed component: PCA. Replace the PCA and test.… - Philips E-154 error code
CPU usage fault (ERR_CPU_USAGE_FAULT). Error level: ABORT; failed component: PCA. Replace the PCA and test.… - Philips E-155 error code
CPU unhandled exception (ERR_CPU_UNHANDLED_EXCEPTION). Error level: ABORT; failed component: PCA. Replace the PCA and test.… - Philips E-170 error code
Bluetooth transmit reset (ERR_BT_RESET_TX). Error level: CONTINUE; failed component: PCA (Bluetooth radio). Replace the PCA and test.… - Philips E-171 error code
Bluetooth receive reset (ERR_BT_RESET_RX). Error level: CONTINUE; failed component: PCA (Bluetooth radio). Replace the PCA and test.… - Philips E-172 error code
Bluetooth stack error (ERR_BT_STACK_ERROR). Error level: CONTINUE; failed component: PCA (Bluetooth radio). Replace the PCA and test.… - Philips E-173 error code
Bluetooth stack mask data write failure (ERR_BT_STACK_MASK_DATA_WR_FAIL). Error level: CONTINUE; failed component: PCA (Bluetooth radio). Replace the … - Philips E-174 error code
Bluetooth radio enable/disable transmit failure (ERR_BT_RADIO_EN_DEN_TX). Error level: CONTINUE; failed component: PCA (Bluetooth radio). Replace the … - Philips E-175 error code
Bluetooth radio enable/disable receive failure (ERR_BT_RADIO_EN_DEN_RX). Error level: CONTINUE; failed component: PCA (Bluetooth radio). Replace the P… - Philips E-176 error code
Bluetooth radio built-in self-test (BIST) failure (ERR_BT_RADIO_BIST_FAIL). Error level: CONTINUE; failed component: PCA (Bluetooth radio). Replace th… - Philips E-180 error code
NVRAM reminder log error (ERR_NVRAM_REMINDER_LOG). Error level: CONTINUE. Clear the error log and test.… - Philips E-181 error code
NVRAM mutex not available (ERR_NVRAM_MUTEX_NOT_AVAILABLE). Error level: REBOOT; failed component: PCA. If the error was NOT the Last Stop Error, clear… - Philips E-182 error code
Philips DreamStation error E-182: ERR_NVRAM_WRITE_FAILED (REBOOT level). Failed component: PCA. 1. If error was NOT Last Stop Error, clear error log a… - Philips E-183 error code
Philips DreamStation error E-183: ERR_NVRAM_WRITE_SU_FAILED (REBOOT level). Failed component: PCA. 1. If error was NOT Last Stop Error, clear error lo… - Philips E-19 error code
Philips DreamStation error E-19: ERR_WDOG_TIMEOUT (ABORT level). Failed component: CPU. 1. If error was NOT Last Stop Error, clear error log and test.… - Philips E-190 error code
Philips DreamStation error E-190: ERR_LCD_ID_ERROR (REBOOT level). Failed component: UI Panel; PCA. 1. If error was NOT Last Stop Error, clear error l… - Philips E-191 error code
Philips DreamStation error E-191: ERR_ALS_BIST (CONTINUE level). Failed component: PCA. 1. Clear error log and test. 2. If the retest fails or the err… - Philips E-192 error code
Philips DreamStation error E-192: ERR_USB_DEVICE_LOST (REBOOT level). Failed component: Accessory Module. 1. Remove and reinsert the accessory module.… - Philips E-193 error code
Philips DreamStation error E-193: ERR_USB_HOST_NO_DEVICE (CONTINUE level). Failed component: Accessory Module. 1. Remove and reinsert the accessory mo… - Philips E-20 error code
Philips DreamStation error E-20: ERR_MOTOR_SPINUP_FLUX_LOW (REBOOT level). Failed component: Motor connection; Blower Box; PCA. 1. Reseat motor connec… - Philips E-200 error code
Philips DreamStation error E-200: ERR_RTOS_ABORT_ERROR (STOP level). Failed component: PCA. 1. Replace PCA and test.… - Philips E-201 error code
Philips DreamStation error E-201: ERR_RTOS_TIMEOUT (REBOOT level). Failed component: PCA. 1. If error was NOT Last Stop Error, clear error log and tes… - Philips E-202 error code
Philips DreamStation error E-202: ERR_RTOS_ONE_SHOT_TASK_NOT_STOPPED (REBOOT level). Failed component: PCA. 1. If error was NOT Last Stop Error, clear… - Philips E-21 error code
Philips DreamStation error E-21: ERR_MOTOR_VBUS_HIGH (STOP level). Failed component: PCA. Replace PCA and retest. No user-recoverable action exists: t… - Philips E-210 error code
Philips DreamStation error E-210: ERR_PERF_CHECK_MSG_TO (STOP level). Failed component: PCA. Replace PCA and test. No user-recoverable action exists: … - Philips E-211 error code
Philips DreamStation error E-211: ERR_PERF_CHECK_POST_FAIL (STOP level). Failed component: PCA. Replace PCA and test. No user-recoverable action exist… - Philips E-22 error code
Philips DreamStation error E-22: ERR_MOTOR_FLUX_MAGNITUDE (REBOOT level). Failed component: Motor connection; Blower Box; PCA. 1. Reseat motor connect… - Philips E-220 error code
Philips DreamStation error E-220: ERR_MOTOR_ID_TIMEOUT (REBOOT level). Failed component: PCA. 1. If error was NOT Last Stop Error, clear error log and… - Philips E-221 error code
Philips DreamStation error E-221: ERR_MOTOR_SHUNT_SAFETY_TIMEOUT (REBOOT level). Failed component: PCA. 1. If error was NOT Last Stop Error, clear err… - Philips E-222 error code
Philips DreamStation error E-222: ERR_MOTOR_DIV_ZERO (CONTINUE level). Failed component: N/A. 1. Clear error log and retest.… - Philips E-23 error code
Philips DreamStation error E-23: ERR_MOTOR_OVERSPEED (REBOOT level). Failed component: PCA. 1. If error was NOT Last Stop Error, clear error log and t… - Philips E-230 error code
Philips DreamStation error E-230: ERR_HUMID_PLATE_CYCLE_OVERRUN (REBOOT level). Failed component: PCA. 1. Clear error log and test. 2. Test humidifier… - Philips E-231 error code
Philips DreamStation error E-231: ERR_HUMID_PLATE_NO_MEASUREMENT (REBOOT level). Failed component: Heater Plate; PCA. 1. Clear error log and test. 2. … - Philips E-24 error code
Philips DreamStation error E-24: ERR_MOTOR_SPEED_REVERSE (REBOOT level). Failed component: PCA. 1. If error was NOT Last Stop Error, clear error log a… - Philips E-240 error code
Philips DreamStation error E-240: ERR_PACKET_CREATION (CONTINUE level). Failed component: N/A. 1. Clear error log and test.… - Philips E-241 error code
Philips DreamStation error E-241: ERR_INVALID_COMPLIANCE_SIZE (CONTINUE level). Failed component: N/A. 1. Clear error log and retest.… - Philips E-250 error code
Philips DreamStation error E-250: ERR_BAROMETRIC_COMM (CONTINUE level). Failed component: PCA. 1. Clear error log and test. 2. If the test fails or th… - Philips E-260 error code
Philips DreamStation error E-260: ERR_CIRCUIT_COMP_MODEL_DIV_ZERO_1 (CONTINUE level). Failed component: N/A. 1. Clear error log and test.… - Philips E-261 error code
Philips DreamStation error E-261: ERR_CIRCUIT_COMP_MODEL_DIV_ZERO_2 (CONTINUE level). Failed component: N/A. 1. Clear error log and test.… - Philips E-262 error code
Philips DreamStation error E-262: ERR_CIRCUIT_COMP_DRIFT_DIV_ZERO (CONTINUE level). Failed component: N/A. 1. Clear error log and test.… - Philips E-27 error code
E-27 is DreamStation error ERR_MOTOR_RL_NCONVERGE, a STOP-level error (the device stops therapy and must be serviced before use). Failed component(s):… - Philips E-270 error code
E-270 is DreamStation error ERR_SDC_UPG_FAILED, a CONTINUE-level error (the device continues operation but logs the error). Failed component(s): N/A. … - Philips E-28 error code
E-28 is DreamStation error ERR_NEGATIVE_QUADRATURE_VOLTAGE_VECTOR, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed co… - Philips E-29 error code
E-29 is DreamStation error ERR_VBUS_GAIN_ZERO, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(s): PCA. Rec… - Philips E-3 error code
E-3 is DreamStation error ERR_INT_RAM, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(s): CPU. Recommended… - Philips E-30 error code
E-30 is DreamStation error ERR_MOTOR_SPINUP_FLUX_HIGH, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(s): … - Philips E-34 error code
E-34 is DreamStation error ERR_MOTOR_TYPE_UNKNOWN, a STOP-level error (the device stops therapy and must be serviced before use). Failed component(s):… - Philips E-35 error code
E-35 is DreamStation error ERR_MOTOR_BLOCKED_INLET, a CONTINUE-level error (the device continues operation but logs the error). Failed component(s): 1… - Philips E-36 error code
E-36 is DreamStation error ERR_MOTOR_BLOCKED_OUTLET, a CONTINUE-level error (the device continues operation but logs the error). Failed component(s): … - Philips E-4 error code
E-4 is DreamStation error ERR_NULL_PTR, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(s): CPU. Recommende… - Philips E-40 error code
E-40 is DreamStation error ERR_NVRAM, a STOP-level error (the device stops therapy and must be serviced before use). Failed component(s): PCA. Recomme… - Philips E-41 error code
E-41 is DreamStation error ERR_STORAGE_UNIT_RAM, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(s): PCA. R… - Philips E-48 error code
E-48 is DreamStation error ERR_NVRAM_MAX_RETRIES_EXCEEDED, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(… - Philips E-50 error code
E-50 is DreamStation error ERR_DAILY_VALUES_CORRUPT, a CONTINUE-level error (the device continues operation but logs the error). Failed component(s): … - Philips E-51 error code
E-51 is DreamStation error ERR_CORRUPT_COMPLIANCE_LOG, a CONTINUE-level error (the device continues operation but logs the error). Failed component(s)… - Philips E-53 error code
E-53 is DreamStation error ERR_COMP_LOG_SEM_TIMEOUT, a CONTINUE-level error (the device continues operation but logs the error). Failed component(s): … - Philips E-55 error code
E-55 is DreamStation error ERR_THERAPY_QUEUE_FULL, a CONTINUE-level error (the device continues operation but logs the error). Failed component(s): N/… - Philips E-56 error code
E-56 is DreamStation error ERR_COMPLOG_PACKET_STATUS, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(s): N… - Philips E-6 error code
E-6 is DreamStation error ERR_STATE_MACHINE, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(s): CPU. Recom… - Philips E-7 error code
E-7 is DreamStation error ERR_SOFTWARE, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(s): CPU. Recommende… - Philips E-71 error code
E-71 is DreamStation error ERR_PSENS_STATUS_BITS_ERROR, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(s):… - Philips E-72 error code
E-72 is DreamStation error ERR_PSENS_UNABLE_TO_OBTAIN_BUS, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(… - Philips E-73 error code
E-73 is DreamStation error ERR_SENSOR_PRESS_OFFSET_STOP, a STOP-level error (the device stops therapy and must be serviced before use). Failed compone… - Philips E-74 error code
E-74 is DreamStation error ERR_PSENS_NO_CALLBACK, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(s): PCA. … - Philips E-8 error code
E-8 is DreamStation error ERR_CRC_FAILED, a STOP-level error (the device stops therapy and must be serviced before use). Failed component(s): CPU. Rec… - Philips E-82 error code
E-82 is DreamStation error ERR_FLOW_SENSOR_OFFSET, a CONTINUE-level error (the device continues operation but logs the error). Failed component(s): PC… - Philips E-83 error code
E-83 is DreamStation error ERR_FSENS_UNABLE_TO_OBTAIN_BUS, a REBOOT-level error (the device reboots/restarts when the error occurs). Failed component(… - Philips E-84 error code
E-84 is DreamStation error ERR_FLOW_SENSOR_STOP, a STOP-level error (the device stops therapy and must be serviced before use). Failed component(s): P… - Philips E-85 error code
E-85 is DreamStation error ERR_FLOW_SENSOR_OCCLUDED, a CONTINUE-level error (the device continues operation but logs the error). Failed component(s): … - Philips E-87 error code
E-87 is DreamStation error ERR_FLOW_SENSOR_BUS, a CONTINUE-level error (the device continues operation but logs the error). Failed component(s): PCA. … - Philips E-93 error code
E-93 is DreamStation error ERR_RTC_VALUE, a CONTINUE-level error (the device continues operation but logs the error). Failed component(s): N/A. Recomm… - Philips E-94 error code
E-94 is DreamStation error ERR_RTC_STOPPED, a CONTINUE-level error (the device continues operation but logs the error). Failed component(s): PCA. Reco…