Sanyo VW-VF10BG, Technical Data & Service Manual

Using this System

2 

- 10

2

7. Trouble Diagnosis

Problems and locations to inspect

Alarm

Alarm

code

Alarm di

sp

lay

LED

LD005 LD006

Bli

n

k

s

6 time

s

.

F10

6A

Bli

n

k

s

10 time

s

.

Bli

n

k

s

6 time

s

.

F12

6C

Bli

n

k

s

12 time

s

.

Bli

n

k

s

6 time

s

.

F15

6F

Bli

n

k

s

15 time

s

.

Bli

n

k

s

7 time

s

.

F29

7D

Bli

n

k

s

1

3

 time

s

.

Bli

n

k

s

14 time

s

.

P12

EC

Bli

n

k

s

12 time

s

.

Bli

n

k

s

10 time

s

.

J10

AA

Bli

n

k

s

10 time

s

.

Bli

n

k

s

10 time

s

.

J11

AB

Bli

n

k

s

11 time

s

.

Bli

n

k

s

10 time

s

.

J12

AC

Bli

n

k

s

12 time

s

.

–

–

–

–

Alarm

de

s

cri

p

tion

Pro

b

a

b

le cau

s

e

In

sp

ection location

/ method

Correction

(Doe

s

n

ot 

operate.)

Tro

u

ble with 

the i

n

take 

temperat

u

re 

s

e

ns

or

Tro

u

ble with 

the h

u

midity 

s

e

ns

or

Tro

u

ble with 

the electroly

s

i

s

un

it water 

temperat

u

re 

s

e

ns

or

Fail

u

re of the 

air p

u

rificatio

n

s

y

s

tem 

EEPROM

Tro

u

ble with 

the DC fa

n

Ab

n

ormal 

electroly

s

i

s

un

it water 

temperat

u

re

Ab

n

ormal 

co

n

d

u

ctivity

Ab

n

ormal 

electroly

s

i

s

c

u

rre

n

t val

u

e

A

n

 ab

n

ormal c

u

rre

n

t val

u

e 

wa

s

 detected d

u

ri

ng

electroly

s

i

s

 co

n

trol.

The power 

su

pply to the 

i

n

door 

un

it ha

s

 failed.

The i

n

take temperat

u

re 

s

e

ns

or co

nn

ector i

s

n

ot 

correctly co

nn

ected to the 

co

n

trol PCB, or the 

s

e

ns

or 

ha

s

 failed.

The h

u

midity 

s

e

ns

or 

co

nn

ector i

s

n

ot correctly 

co

nn

ected to the co

n

trol 

PCB, or the 

s

e

ns

or ha

s

failed.

The electroly

s

i

s

un

it water 

temperat

u

re 

s

e

ns

or 

co

nn

ector i

s

n

ot correctly 

co

nn

ected to the co

n

trol 

PCB, or the 

s

e

ns

or ha

s

failed.

Writi

ng

 to the EEPROM o

n

the co

n

trol PCB i

s

n

ot 

po

ss

ible.

The DC fa

n

 motor co

nn

ector 

i

s

n

ot correctly co

nn

ected to 

the co

n

trol PCB, or the DC 

fa

n

 motor ha

s

 failed.

There i

s

n

o water i

n

 the 

electroly

s

i

s

un

it, d

u

e to 

tro

u

ble with the p

u

mp or 

water circ

u

it.

Beca

us

e the electroly

s

i

s

un

it 

co

nn

ector ha

s

 become 

di

s

co

nn

ected, the 

s

y

s

tem 

ha

s

 j

u

d

g

ed that there i

s

n

o 

water i

n

 the electroly

s

i

s

 ta

n

k.

Check that the power 
breaker i

s

 ON.

Check that the i

n

take 

temperat

u

re 

s

e

ns

or i

s

correctly co

nn

ected to the 

co

n

trol PCB, a

n

d check that 

there i

s

n

o 

s

hort circ

u

it i

n

 the 

s

e

ns

or.

Check that the h

u

midity 

s

e

ns

or i

s

 correctly co

nn

ected 

to the co

n

trol PCB, a

n

d 

check that there i

s

n

o 

s

hort 

circ

u

it i

n

 the 

s

e

ns

or.

Check that the electroly

s

i

s

un

it water temperat

u

re 

s

e

ns

or i

s

 correctly co

nn

ected 

to the co

n

trol PCB, a

n

d 

check that there i

s

n

o 

s

hort 

circ

u

it i

n

 the 

s

e

ns

or.

T

u

r

n

 the power OFF a

n

d 

back ON, a

n

d check whether 

alarm F29 occ

u

r

s

 a

g

ai

n

.

Check that the DC fa

n

 motor 

i

s

 correctly co

nn

ected to the 

co

n

trol PCB.

Check that the p

u

mp i

s

circ

u

lati

ng

 water correctly, 

check that the float 

s

witch i

s

f

un

ctio

n

i

ng

 correctly, a

n

d 

check that the water 
temperat

u

re 

s

e

ns

or i

s

i

ns

talled correctly.

Check that the electroly

s

i

s

un

it co

nn

ector i

s

 correctly 

co

nn

ected to the co

n

trol 

PCB, a

n

d check that the 

p

u

mp i

s

s

e

n

di

ng

 water to the 

electroly

s

i

s

un

it.

Check for di

s

placed 

electrode

s

 i

ns

ide the 

electroly

s

i

s

un

it.

T

u

r

n

 the breaker ON.

Co

nn

ect the co

nn

ector 

correctly or replace the 

s

e

ns

or.

Co

nn

ect the co

nn

ector 

correctly or replace the 

s

e

ns

or.

Co

nn

ect the co

nn

ector 

correctly or replace the 

s

e

ns

or.

Replace the EEPROM.

Co

nn

ect the co

nn

ector 

correctly or replace the DC 
fa

n

 motor.

Replace the float 

s

e

ns

or or 

the p

u

mp, or i

ns

tall the 

water temperat

u

re 

s

e

ns

or 

correctly 

s

o that it f

un

ctio

ns

correctly.

Co

nn

ect the co

nn

ector 

correctly, replace the p

u

mp, 

or replace the co

n

trol PCB.

Check that 

n

o electrode

s

are di

s

placed i

ns

ide the 

electroly

s

i

s

un

it, replace the 

electroly

s

i

s

un

it, or replace 

the co

n

trol PCB.

I

Alarm display

G

If an alarm occurs while the system is operating, the alarm display LED on the unit display will blink at 1-second
intervals (0.5 seconds ON, 0.5 seconds OFF) for the number of times that corresponds to the alarm code.

G

When facing the control PCB, the LED on the LD005 indicates the first digit, and the LED on the LD006
indicates the second digit.

For example, when alarm F10 occurs, the alarm code is 6A. Therefore, the LED for the first digit blinks 6 times,
then the LED for the second digit blinks 10 times.

LD006

Alarm display LED

LD005

07-032 VW-VF10BG_TD  2/15/07  11:24 AM  Page 11