Baxi Assure AWHP-IDU 4-8 E, Installation And Service Manual

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Tab.96 List of temporary error codes
Error
code
Message Description
H00.17 DHW sensor Closed Domestic Hot Water tank temperature sensor is either shorted or measures a
temperature above range
Check the wiring between the central unit PCB and the sensor.
Check that the sensor has been fitted properly.
Check the Ohmic value of the sensor.
Replace the sensor if necessary.
H00.32 TOutside Open Outside temperature sensor is either removed or measures a temperature below range
Check the wiring between the central unit PCB and the sensor.
Check that the sensor has been fitted properly.
Check the Ohmic value of the sensor.
Replace the sensor if necessary.
The outdoor temperature sensor must always be connected to the EHC–05 PCB. If
you have mistakenly connected the outdoor temperature sensor to the SCB-10 PCB,
you must reset the factory settings for the CN1 and CN2 parameters.
H00.33 TOutside Closed Outside temperature sensor is either shorted or measures a temperature above range
Check the wiring between the central unit PCB and the sensor.
Check that the sensor has been fitted properly.
Check the Ohmic value of the sensor.
Replace the sensor if necessary.
H00.34 TOutside Missing Outside temperature sensor was expected but not detected
Check the wiring between the EHC–05 central unit PCB and the sensor.
Check that the outdoor temperature sensor is connected to the EHC–05 PCB.
Check that the sensor has been fitted properly.
Check the Ohmic value of the sensor.
Replace the sensor if necessary.
Activate automatic detection of all the options and accessories.
Reset the factory settings for the CN1 and CN2 parameters.
Important
This solution also resets all the other parameters.
H00.47 HP flow sensor removed
or below range
Heat pump flow temperature sensor is either removed or measures a temperature
below range
Check the wiring between the central unit PCB and the sensor.
Check that the sensor has been fitted properly.
Check the Ohmic value of the sensor.
Replace the sensor if necessary.
H00.48 THp Flow Closed Heat pump flow temperature sensor is either shorted or measures a temperature
above range
Check the wiring between the central unit PCB and the sensor.
Check that the sensor has been fitted properly.
Check the Ohmic value of the sensor.
Replace the sensor if necessary.
H00.49 THp Flow Missing Heat pump flow temperature sensor was expected but not detected
Check the wiring between the central unit PCB and the sensor.
Check that the sensor has been fitted properly.
Check the Ohmic value of the sensor.
Replace the sensor if necessary.
H00.51 THp Return Open Heat pump return temperature sensor is either removed or measures a temperature
below range
H00.52 THp Return Closed Heat pump return temperature sensor is either shorted or measures a temperature
above range
Check the wiring between the central unit PCB and the sensor.
Check that the sensor has been fitted properly.
Check the Ohmic value of the sensor.
Replace the sensor if necessary.
11 Troubleshooting
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