Shizuoka Seiki VAL6 EPX Series, Руководство по обслуживанию

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PAGE 15
VAL6 EPX Trouble Shooting
No. Possible Cause How to check Result Remedy
49 Fuel line is clogged Clear the clog in fuel line
Turn the heater around /
Remove a reflective object
near the heater If it works normally, the
heater detects outside light
Tighten all fittings and
repeat start-operation
Clean the fuel filter, fuel
line or fuel pump Any clog in fuel filter,
fuel line or fuel pump
Fuel is not sprayed normally from the nozzle
Replace a fuel filter, fuel
line or fuel pump 48
Replace a fuel filter Check with eyes whether
or not the fuel filter is dirty
or fouled Fuel filter (element) is
clogged 50
《How to replace a fuel filter》
Replace a photo cell or a
burner control If it shows less than DC
1.2V when the photo cell is
covered, the photo cell or
burner control is defective
47 Repeat start-operation 2
or 3 times in order to pump
air out of fuel line
＊NEVER repeat more
than 5 times in a row as
fire may result
Measure voltage at photo
cell connector (CN9) with
the connector on burner
control
(Condition: Standard value)
in dark: approx. DC 5V
in light: less than DC 1.2V
Replace a fuel pump
(Cord color & Standard value)
44
Fuel pump is inhaling
air If the heater is brand-new
or after refueling, the air is
remaining in fuel line
Fuel pump is idling with clicking sound
Disconnect fuel pump
connector (CN 14) from
burner control, then
measure coil resistance
46
45
If it shows ∞Ω, fuel pump
is defective
Fuel pump is defective
Turn the heater around
against the outside light Photo cell(flame
monitor) detects
outside light such as a
sunlight before ignition
Photo cell(flame
monitor) or burner
control is defective
If not, confirm no loose
fitting in fuel line If there are some loose
fitting in fuel line, fuel pump
suck the air
EPX1 blue - blue: approx.
400kΩ
EPX5 blue - blue: approx.
80Ω