Wayne EHASR-DC User Manual

8
PROBLEM
POSSIBLE CAUSE
SOLUTION
BURNER WILL NOT
LIGHT
(continued)
Little or no fuel pressure from fuel pump
Increase fuel pressure to manufacturer's specifications. See
Figure 25 on page 36 for pump features. Check that the
plastic coupler (see Figure 1 on page 13, item 13) is not
slipping on pump shaft, replace as needed and/or replace
pump.
Air bubble in pump
Bleed pump (see page 31 for instructions) and check all fuel
lines for air leaks, replace lines as needed. See Figure 25 on
page 36 for pump features.
Flex-coupling slipping on fuel pump
shaft or burner motor shaft
Replace as needed. See Figure 1 on page 13, Item 13.
Fuel not reaching combustion chamber
Check fuel system for proper flow going through the burner.
Clogged burner nozzle
Replace. See page 23 for instructions.
Low voltage at burner wire leads
Check for proper 13.5Vdc going to the burner
Fuel solenoid malfunction
Replace as needed. See Figure 1 on page 13 for
replacement part.
Bad connection between drop-out timer
and ignition device
All wire contacts should be clean and tight. No breaks in wire
insulation, replace as needed. See page 23 for wire size
recommendations.
Drop-out timer sees light in combustion
chamber
Disconnect cad cell and test ignition device for proper arc
between contacts.
Faulty drop-out timer
Bypass drop-out timer in the circuit and test for proper arc
between contacts. If arc is present replace drop-out timer.
See Figure 1 on page 13 for replacement part number.
Faulty burner ignition device
Test ignition device for proper arc between contacts. Replace
as needed. See Figure 1 on page 13 for replacement part.
Disconnected or short in electrical wiring
All wire contacts should be clean and tight. No breaks in wire
insulation, replace as needed. See page 23 for wire size
recommendations.
Oil primary control sees light during
safety check and remains in standby
mode (Applicable only if burner comes
with oil primary control).
Remove power from white command wire for 2 seconds on
Wayne 12Vdc oil primary control. Identify control model
number and observe burner sequence of operations. If burner
remains on standby see Burner does not light, Wayne
control remains on standby, on page 10.
Oil gun depth spaced too far ahead
causing electrodes to short to ground
through air cone.
Identify burner model and position oil gun depth according to
Figure 17 on page 28 and Figure 18 on page 29. See page
28 for instructions.
Heavy sooting on burner electrodes,
and air cone causing a weak arc
between the electrodes.
Clean as required. Check ceramic for any chips and cracks
that could affect arc between the electrodes, replace as
required. See Table 2 on page 15 for replacement parts.
BURNER WILL LIGHT,
BUT NOT STAY LIT
DURING CALL FOR HEAT
Oil primary control goes into nuisance
lockout (Applicable only if burner comes
with oil primary control).
Remove power from white command wire for 2 seconds on
Wayne 12Vdc oil primary control, observe burner sequence
of operations. If burner locks out again see Burner Will
Light, But Will Not Stay Lit During “Call For Heat”, on
page 11.
BURNER SMOKES
Improper fuel or water in fuel
Drain tank and replace contaminated fuel.
Improper air adjustment
See page 30 for air band adjustment on burner assembly

Wayne EHASR-DC Specifications

General

Brand	Wayne
Model	EHASR-DC
Category	Burner
Language	English