Toshiba MMW-AP0271LQ-E Service Manual page 43

Check code
Outdoor 7-segment display
Sub-code
A02 —
A04 —
Note:
The above check codes are examples only, and different check codes may be displayed depending on
the outdoor unit configuration (e.g. a Super heat recovery multi system).
For details, see the service manual for the outdoor unit.
TCC-LINK
central control
Typical fault site
or main remote
controller
display
Water temperature decrease
A02
error
Plate type heatexchanger
A04
freezing protective operation
• Check the water temperature.
• Check the heat insulator of wate pipes.
• Check the line heater.
• Check the PMV coil and PMV.
• Check the 2way valve coil and 2way valve.
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Indoor unit (including Hot Water Module)
Description of error