Page 18
OMNI by EconoHeat
Troubleshooting
♦
Most Likely
•
Less Likely
♣
Least Likely
Symptom
Cause
Remedy
1. Heater shuts
o
♦
Manual reset
♦
Requiring manual restart by reset button on.
2. Loss
o
prime overnight
♦
Vacuum air leak i
n
uel line
♦
Check all uel connections. Tight
e
n
ittings.
W
o n
t hold vacuum
♣
Plugged pump screen
♣
Check pump screen, may need cleaning-to access, remove pump cover
IS TANK EM
P
•
Plugged
e
r or tank oil empty
•
Clean ilter. Using vent port, reprime pump
(
Figures 6 & 7).
3. Fails to start.
♦
Vacuum Leak
♦
Open bleeder port i air present. Check and tighten ittings.
♦
Inadequate Fuel Supply
♦
Clean ilter. Check all uel connections. Tighten ittings.
•
No Pressure
•
Check, may need cleaning—to access, remove pump cover.
•
Using vent port, reprime pump
(
Figures 6 & 7).
•
No Pre-heat
•
Be sure all wiring to pre-heater is tight-no loose connections.
•
B
a
irerod
replace; continuity at terminals.
•
Auto start circuit not unctioning
•
Check circuit control board and replace i necessary
(
all actory).
•
Check continuity at terminals
o
irerod limit snap switch.
Replace i needed.
•
No Arc
•
Check springs to electrode rod
a
ustment
(
under tr
a
n
ormer)
make sure they make good contact. Open burner door and make
sure electrode tips ar
e
n
t touchi
n
lame cone or one another. R
e
a
ust.
4. Hard starting diminished
♦
Partially plugged
e
r.
♦
Clean ilter. Using vent bleeder port on pump, re-prime pump
(
See Figure 6 & 7) lame.
♣
Out
o
uel
♣
R
e
ill Storage.
♣
No oil to burner
♣
Check pump screen
remove pump cover; clean i needed.
Using vent bleeder port, re-prime pump.
(
Figures 6 & 7)
•
Inadequate combustion air rom burner
•
Remove nozzle and check or oreign
o
ects.
(
Figures 9 &
1
)
•
Aluminum Block Pre-heater inside burner may not build
up carbon. I carbon is present, thermocouple heat sensor wire could
have open circuit. Heat control board may have blown circuit and circuit
board use.
Inspect both and replace either i needed
(
Figure
1
).
Back dr
a
t in combustion chamber may be present. Check dr
a
t
lue
pipe & over ire at vision port.
•
Air band open t
o o
ar
•
Close air band—while viewing lame; open air band slowly until
combustion chamber is clear, not orange.
5. Heater cycles requently,
♦
Heater over iring, Inadequate
♦
Investigate and locate reason or over iring. Check and clean end cone
without thermostat combustion air rom burner turbulator i needed.
temperature setting being
achieved in area to be
♣
Temperature setting wrong
♣
Check temperature setting and
a
ust as necessary.
heated.
On high limit an
a
ety switch
•
High limit
a
ety switch bad
•
Replace high limit an
a
ety switch.
6. Heater rumbles and
♦
Pump setting wrong
♣
Clean ash buildup in combustion chamber, exchange and vent lue pipe.
excessive heat blow back
rom lame vision port.
♣
Dra t incorrect. I proper dra t
a
n
t
♣
Set dr
a
t. Clean out combustion chamber and exchangers
be achieved, consider any exhaust
o
ash. Check dr
a
t-reset i needed.
ans in building i added since initial install.
7. Heater establishes lame
♦
Photo eye cant
e e
lame.
♦
Clean photo eye which is clouded by back dr
a
t smoke.
but locks out or shuts
o
.
♣
Due to back dr
a
t. Flame end
♣
Swing open burner door and clean ash buil
rom lame
Need to reset primary.
cone may have ash.
end cone.
(
See Figure 5 & 8).
•
Bad or uncontroll
e
lame due to
nozzle erosion
•
Replace nozzle
8. Proper dr
a
t setting
♦
Negative dr
a
t in building
♦
May need to install power vent/dr
a
t inducer
s in stack.
cannot be achieved
or exhaust ans present.
(
See Figur
e
or wiring).
♣
Excessive ash buildup/Heater
♣
Clean ash and soot rom combustion chamber and heat
exchangers.
9. Poor or reduced heat
♦
Flame too small
♦
Nozzle or preheater block may be plugged with carbon debris.
production.
♣
Entir
e
uel supply may be plugged.
♣
Clean ilter both, oil strainer and check oil pump screen.
•
Excessive ash buildup exchangers
•
Clean ash rom combustion chamber and exchangers.
•
Through vision port, check lame
to see i lame is smaller than usual
or too large and uncontrolled.
