Toshiba HWS-802H-E, HWS-802XWHT6-E, HWS-802XWHM3-E, HWS-3001CSHM3-E(-UK), HWS-2101CSHM3-E(-UK)

[A08] Error Lo pressure sensor lowering operation failure (Cooling/Defrosting operation)

Start

			No
Flow switch is		normal				Replace flow switch
	Yes
					Remove sufficiently
Excess air					excess air
			Yes	Secure water	Waste stuck inside
noise comes from						Remove waste
				circulation amount	water circuit
inside pump
	No
					12 M or longer water	Place buffer tank and
					pipe to a branch,	the second pump
Chattering			Yes		or 5 or less branches
				Circulation flow
noise comes from
flow switch				shortage
	No
Continued
operation at low outside			Yes
						Raise set temperature
temperature and at 15°C or lower			(Cooling overload operation)
set temperature
	No
Defrosting			Yes
						Defrost outdoor unit
takes 15 mins or longer
						where frost remains
(Frost remains)
	No
Lo pressure sensor			No
						Replace lo pressure sensor
is normal
	Yes
Replace water heat
exchange control board

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