Toshiba HWS-1402XWHT6-E, HWS-802XWHT6-E, HWS-802H-E, HWS-802XWHM3-E, HWS-3001CSHM3-E(-UK) Check code

Check code	Outdoor LED	Check and Action procedure
	indication	(No specific description indicates outdoor unit parts.)
[P19]	<Indication 1> <Indication 2>	[4-way valve invert failure]
		4-way valve operates normally.	No
		(Check piping temperature at the
		time of cooling/heating operation)
		Yes

Temperature sensor check

TE sensor CN601

TS sensor CN600

Hydro TWO sensor

If defective, repair or replace it

4-way valve coil resistance			No
				Replace 4-way coil
is 1.3 to 1.6 k .
		Yes
Outdoor control		board operation	NG	Check outdoor board
check (See below)				If defective, replace it
		OK
	4-way valve check
	If defective, replace it

Outdoor control board operation check direction (Self-hold valve)

1)With the dip switch SW804 set as in the table below, pressing SW801 for approx. 1 second can check the operation of switching to cooling cycle or to heating cycle.

•The board are energized for 10 seconds.

•Take more than a minute for the next check because the parts (coil, resistance R700) generate large heat.(This does not apply when no coil is connected.)

2)After the check, set all the SW804 dip switches to OFF.

Switching to cooling cycle

Switching to heating cycle

SW804 SW801 CN701

SW804 SW801 CN701

ON

1 2 3 4

Press

		4
			3
	2
ON	1

Press

180DCV or higher

180DCV or higher

Note: Check with a tester

With an analog tester: If a tester shows 180DCV or higher, the board is good.

With digital tester:	Although values shown has some range, if its maximum value is
	180DCV or higher, the board is good.

96