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Error-code
Motor is stop ping approx. 3 sec. after start
No
Replace fu se F4
Start motor
motor
running for
No
mo re than 3 sec.?
Check hold
coil Y2
24
Temp. set at max. - start mo tor
Is
oil lamp H1
lighting, when
mo tor runs?
No
Fill oil
Is fu se F4 ok?
No
Is
Yes
Ok, well
do ne!
Yes
Has
mo tor oil?
No
Yes
Disconnect to JP 1.2 on
PC-board A2
Start motor
mo tor
running for
No
mo re than 3 sec.?
Mount by-pass connect. on PC-
board A2 betw. JP1.6 and JP1.7
Start motor
Is
mo tor
running for
No
more than 3 sec.?
Trouble-shooting
Yes
Rem ove cable
connection to
pres.switch B7
Start motor
Is
mo tor
running for
more than 3 sec.?
Replace oil
Is
Yes
fl ame sen sor
B6, oil coil
Replace
PC-board
Yes
Replace
PC-board
A2
D
Yes
pressure
switch B7
Check
Y1
A1
D_CON. 03GB.
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