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

	Diagnostic functional operation				Number of
Check				Determination and action	abnormalities	Detailed
code		Backup	Automat		for	item
	Operational cause
		present	ic reset		confirmation
	TFI sensor error			1. Check the resistance value and
F17	Open or short circuit in the floor	×	O	disconnection of the floor-inlet	1	87
	temperature sensor.			temperature sensor (TFI).
	THO sensor error			1. Check the resistance value and
F18	Open or short circuit in the heater outlet	×	O	disconnection of the heater outlet	1	88
	temperature sensor.			temperature sensor (THO).
	Detection of THO disconnection error			1. Check for any disconnection of the
F19	When TWO–THO>15K is detected and	×	×	heater outlet temperature sensor	1	88
	30 sec elapsed.			(THO).
	TFI sensor error			1. Check any disconnection of the
F20	When TWO–TFI>30K is detected and	×	×		1	89
				floor-inlet temperature sensor (TFI).
	TFI<TWI–5K is detected.
	Low pressure sensor error			1. Check for any disconnection (body
	When PS<0.07 MPa is detected for 2			or connection wiring) of the low
F23	sec or more.	O	O	pressure sensor.	1	89
				2. Check the resistance value of the
				low pressure sensor.
	EEROM error			1. Replace the water heat exchange
F29	Inconsistency is detected once without	×	×		1	90
				control board.
	verify ACK after writing to EEPROM.
F30	Extended IC error	×	×	1. Replace the water heat exchange	1	90
	When the extended IC is abnormal.			control board.
L07	Communication error	×	×	1. Replace the water heat exchange	1	90
	Individual hydro units have a group line.			control board.
	Communication error			1. Check the setting of the FC01
L09	The capability of the hydro unit has not	×	×	capability specifications.	1	90
	been set.			HWS-802xx-E = 0012
				HWS-1402xx-E = 0017
	Setting error
L16	When ZONE1 has not been set, while	×	×	1. Check the body DP-SW12_2,3.	1	90
	ZONE2 has been set.

69