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1118824, VER. 00
E-36 Blower thermistor is open circuit. Could be a
broken wire or bad or missing connector.
Log Only In the following order:
• Reseat Blower Con-
nectors
• Replace Blower Assy
• Replace Therapy PCA
E-37 Blower thermistor is shorted. Could be caused
by the Blower being very high temperature.
Log Only In the following order:
• Reseat Blower Con-
nectors
• Replace Blower Assy
• Replace Therapy PCA
E-38 Measurement of Blower parameters could not
be found within 18s. Could be defective Blower
drive, broken wires.
Vent Inop In the following order:
• Reseat Blower Con-
nectors
• Replace Blower Assy
• Replace Therapy PCA
E-39 Ramp Key is stuck on Log Only Check the operation/alignment
of the Ramp button. If OK, re-
place Therapy PCA
E-40 Knob Stuck in the pressed position Log Only In the following order:
• Reposition or replace
the UI knob/top
enclosure neces-
sary
• Replace Therapy
PCA
E-41 Humidifier’s thermistor may be shorted. Log Only In the following order:
• Replace Heater Plate
• Replace Therapy
PCA
E-42 Reserved for future use Log Only None
E-43 Program execution error. Reboot Replace Therapy PCA
E-44 During communication with the EEPROM, the
transfer was never completed
Reboot Replace Therapy PCA
E-45 During rotation of the rotary encoder, the en-
coder signal B is changing but encoder signal
A is not
Log Only Replace Therapy PCA
E-46 During rotation of the rotary encoder, the en-
coder signal A is changing but encoder signal
B is not
Log Only Replace Therapy PCA
E-47 The number of bytes transferred was incorrect
during NVRAM operation
Reboot Replace Therapy PCA
CODE DESCRIPTION TYPE ACTION