6.3“See Manual” Error Codes

The following is an explanation of the error codes that are displayed in conjunction with the See Manual indicator flashing. A code is not displayed if the microprocessor has stopped functioning (see technical problems - section 6.2).

Error

Description of Fault

 

E00

No fault

 

E02

Microprocessor stack overflow

 

 

 

 

E03

RAM fault

 

E04

ROM fault

 

 

 

E05

EEPROM version older than ROM version. Update EEPROM. Refer to Section 7.2.6

E06

EEPROM version newer than ROM version – (old software). Contact Fisher & Paykel

 

Healthcare

 

 

 

 

E07

Model mismatch with software, contact your Fisher & Paykel Healthcare

 

 

representative.

 

 

NOTE: included in software version 7.14 onward, except 7.21.

 

 

 

 

E10

Temperature circuit calibration out of range: Range Amp 0: 25.5 °C

 

E11

Temperature circuit calibration out of range: Range Amp 0: 65.0 °C

 

 

 

 

E12

Temperature circuit calibration out of range: Range Amp 1: 25.5 °C

 

E13

Temperature circuit calibration out of range: Range Amp 1: 34.5 °C

 

E14

Temperature circuit calibration out of range: Range Amp 2: 34.5 °C

 

 

 

 

E15

Temperature circuit calibration out of range: Range Amp 2: 44.6 °C

 

E16

Temperature circuit calibration out of range: Range Amp 3: 65.0 °C

 

 

 

 

E20

Heater wire circuit has malfunctioned, heater can not be energized:

 

 

- Heater plate thermal cutout tripped (section 7.2.5)

 

 

- Heater wire fuse (F2) is open circuit (section 7.2.2)

 

 

- Heater wire triac, or heater wire relay is open circuit

 

 

 

 

E21

Heater wire circuit has malfunctioned, heater either can not be de-energized or

 

 

monitoring circuit has failed :

 

 

- Heater wire triac has shorted

 

 

- Heater wire sense circuit has failed

 

 

 

 

E23

Heater wire voltage measurement circuit faulty

 

E25

Transistor Q17 is not turning on

 

 

 

 

E26

Transistor Q16 is not turning on

 

E27

The heater wire relay is short circuited

 

 

 

 

E28

Mains voltage measurement is uncalibrated (section 8.1.3)

 

 

 

 

E29

The heater plate thermistor is short circuited

 

E2A

The heater plate thermistor is open circuit

 

 

 

 

E2C

Heater plate element circuit has malfunctioned is not turning on:

 

 

- Element is open circuit

 

 

- Heater plate triac or driver faulty

 

 

- Heater plate relay is faulty

 

 

 

 

E2D

The heater plate element is not turning off. Heater plate triac circuit faulty.

 

E30

Power (on/off) button stuck on

 

 

 

 

E31

Mute button stuck on

 

E32

Mode button stuck on

 

 

 

 

E40

Unit not functional tested at time of manufacture

 

 

MR850 Technical Manual * Revision J * Issued November 2005 * Ref. 185041340 (185041713 internal)

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