5.2SEE MANUAL CODES
When the See Manual Indicator is illuminated the humidifier will switch off the heater plate and heater- wire. Pressing the Temperature Setting button displays the error code on the Temperature Setting Indicators, as explained in Table 3.
Table 3: Indicator codes and their meaning
Temperature | See |
| Fault Description |
|
| Section |
| |
Setting | manual |
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|
Indicators | Indicator |
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| Microprocessor failure, replace PCB. |
| 6.4 |
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| ||
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| Button fault. Check buttons are correctly seated. |
| 6.7.1 |
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| ||
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| |||
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| Heater plate primary thermistor fault (short or open | 6.5.4 |
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| |||
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| circuit). Check the thermistor is working correctly, |
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| replace if necessary. |
|
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| |
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| Heater plate | secondary thermistor | fault (short | or | 6.5.4 |
|
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| 5 | |||||||
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| open circuit). Check the thermistor is working |
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| correctly, replace if necessary. |
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| |
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| Ambient thermistor fault (short or open circuit), | 6.6 |
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| check |
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| Chamber Sense thermistor fault (short or open | 6.6 |
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| circuit), check |
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| necessary. |
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| 6.4 |
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| faulty, service or replace PCB as necessary. |
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| Heater control triac error | 6.4 |
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| circuit or heater plate triac open/short circuit). |
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| Service triac circuitry, replace PCB if necessary. |
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| Clip Circuit error. | Service | the | 6.4 |
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| |
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| hardware clip circuit, replace PCB if necessary. |
|
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| ||
Failed factory production testing. Device should be returned to your Fisher & Paykel Healthcare representative.
Temperature Setting Indicator description
Indicator off
Indicator flashing
Indicator on
MR810 Technical Manual Revision C REF 185042601 | 17 |