Shizuoka Seiki VAL6 EPX Series, Руководство по обслуживанию

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PAGE 17
VAL6 EPX Trouble Shooting
No. Possible Cause How to check Result Remedy
Flame is disproportionate
Oil-drop spatters
Fuel flow is decreased
Fuel pump is clogged
Nozzle is clogged
Replace a nozzle
62 Replace a burner control
If voltage doesn't
change,flame monitor fails Replace a flame monitor 59 Measure voltage at flame
monitor connector on
burner controller standard
dark - about DC5V
light - DC 1.2V and under Flame monitor is
defective
Adjust a air inlet opening
Normal scale： 5
61
Not applicable in above
The heater receive a
strong impact or is on
a slope
Overheat lamp blinks during operation (in any time)
60
Combustion air is too
much Check whether air inlet
opening for combustion is
appropriate If opening is larger,
imperfect combustion
occurs by too much oxygen
Nozzle is clogged Operate the burner unit
alone and see flame
condition
Flame is smaller than usual Replace a fuel pump
Replace a nozzle
《How to clean the whirl vane and inside of draft
57
Plug connector (CN9)
firmly If it works normally, flame
monitor connector fails on
contact Plug flame monitor
connector (CN 9) again,
and then turn on Flame monitor
connector (CN 9) is
loose connection 58
Poor lighting is
detected by flame
monitor Remove a burner and
check whether the whirl
vane and inside of draft
tube are clear or not If they are dirty or
dustiness, flame monitor
cannot detect flame light
properly Clean the whirl vane and
inside of draft tube or
replace a vane
*clean the lens of flame
monitor
64
Ambient temperature must
be under 40℃
Tip-over lamp blinks during operation (in any time)
63 Overheat protection is
working because of
high ambient
temperature Move the heater to the
place with low ambient
temperature
65
Prevent the heater from
receiving a strong impact
or place the heater on a
flat
Tip-over switch cord is
disconnection / Tip-
over switch is defective Check the conduction of
tip-over switch
Cord color: red-red
Standard: 0Ω (with level
off)
If it doesn't conduct (∞Ω)
when the heater is on the
level,
Tip-over switch cord is
disconnection / Tip-over
switch is defective
Replace a tip-over switch
draft tube
whirl vane
Clean the whirl vane and inside
of draft tube (especially behind
whirl vane) till they are shining
flame monitor