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Page 18

OMNI by EconoHeat

 

Most Likely 

Less Likely 

Least Likely 

 

   Symptom 

 

 

    Cause   

 

     Remedy 

1. Heater shuts 

o

 

 

 Manual reset 

 

 

 

R

equiring manual restart 

b

reset button on. 

2. Loss 

o

 prime overnight 

 

V

acuum 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, m

a

need cleaning-to access, remove pump cover 

    IS TANK EMPTY?   

 Plugged

  

e

r or tank oil empt

    

 Clean  ilter. Using vent port, reprime pump (See Figure 6 & 7). 

3. Fails to start. 

 

 

V

acuum Leak 

 

 

 Open bleeder port i  air present. Check and tighten  ittings. 

 

 

 

 Inadequate Fuel Suppl

 

 

 Clean  ilter. Check all  uel connections. Tighten  ittings. 

 

 

 

 No Pressure 

 

 

 

 Check, m

a

need cleaning

—

to access, remove pump cover. 

 

 

 

 

 

 

 

 

 Using vent port, reprime pump (See Figure 6 & 7) 

 

 

 

 No Pre-heat   

 

 

 

 Be sure all wiring to pre-heater is tight-no loose connections. 

 

 

 

 

 

 

 

 

 

 Bad

 

e

rod-

R

eplace. Continuit

at terminals.  

 

 

 

 Auto start circuit not  unctioning               

 

 Check circuit control board and replace i  necessar

y

(Call Factor

 

 

 

 

 

 

 

 

 

 Check continuit

at terminals 

o

  irerod limit snap switch. 

 

 

 

 

 

 

 

    

R

eplace i  needed.   

 

 

 

 

 

 

 No Arc 

 

 

 

 

 Check springs to electrode rod adjustment (under tr

a

n

ormer) 

 

 

 

 

 

 

 

    make sure t

h e

make good contact. Open burner door and make 

 

 

 

 

 

 

 

    sure electrode tips ar

e n

t touchi

n

lame cone.

R

eadjust. 

 

 

 

 No Air Pressure 

 

 

 

 Check pressure regulator and adjust. Check air suppl

line  or 

 

 

 

 

 

 

 

    restrictions or leaks. Pull compressor cover and inspect carbon 

 

 

 

 

 

 

 

    

vanes. M

a

need to replace. Check  ilter, clean i  needed.  

4. 

R

educed air pressure, 

 Gauge m

a

be bad.   

 

 

R

eplace gauge. 

    cannot increase. 

 

 Intake  ilter mu ler is plugged 

 

 

R

emove & Clean with carburetor cleaner, dr

thoroughl

y

 Do Not Use. 

 

 

 

   

with dust or dirt. 

 

 

     

 

 

 

 Compressor vanes m

a

be worn. 

 

R

eplace carbon canes. 

 

 

 

 

 Exposed to water. 

 

 

 

 

R

emove cover, clean rust with emer

cloth. 

5. Hard starting diminished 

 Partia

 

 plugged

  

e

r. 

 

 Clean  ilter. Using vent port-reprime pump (See Figure 6 & 7) 

      lame.    

 

 Out 

o

  uel 

 

 

 

R

e

ill Storage. 

 

 

 

 No oil to burner 

 

 

 Clean pump screen-

R

emove pump cover. Using vent 

 

 

 

 

 

 

                   

port, reprime pump. (See  igure 6 & 7) 

 

 

 

 

R

estriction in nozzle usuall

onl

  

 

 

R

emove nozzle and check  or  oreign objects. (See Figure 9 and 11) 

 

 

 

  when initiall

installed. New lines  

 

 Aluminum Block Pre-heater inside burner should not build 

 

 

 

  m

a

have  oreign material in them. 

   up carbon. I  carbon is present, pre-heat circuit is mal unctioning. 

 

 

 

 

 

 

 

   Thermocouple heat sensor wire could have open circuit.  

 

 

 

 

 

 

 

   

Heat control board m

a

have blown circuit and circuit boar

d

use. 

 

 

 

 

 

 

 

   Inspect both and replace either i  needed. (See Figure 11). 

 

 

 

 Air band open t

oo

ar  

 

 Close air band

—

while viewing  lame; open air band 

 

 

 

 

 

 

 

   slowl

 until combustion chamber is clear, not orange. 

6. Heater 

cc

es  requentl

 

 

 Heater over  iring. 

 

 

 Investigate and locate reason  or over  iring. I.e., nozzle 

without thermostat 

eroded, pump not  unctioning properl

, decrease pump motor speed. 

    temperature setting being 

 

 

 

 

   (S

ee

or rem

e

d

    achieved in area to be 

 Temperature setting wrong 

    heated.   

 

    On high limit  an 

a

et

switch.   

 Check temperature setting and adjust as necessar

y

 

 

 

 

 

 High limit 

a

et

switch bad 

 

 

 

R

eplace high limit  an 

a

et

switch.  

7. Heater rumbles and   

Pump setting wrong   

 

 Pump not unctioning properl

-over  iring. M

a

need 

R

PM readjust. 

    excessive heat blow back 

 

 

 

 

    

R

eset  lame slightl

less than 

½

 w

a

down tube combustion chamber. 

     rom  lame vision port. 

Use adjustment knob on pump motor. (See Figure 7). 

 

 

 

 Dra t incorrect. I  proper dra t 

 

 Set dr

a

t. Clean out combustion chamber and exchangers 

 

 

 

    

c a

n

t be achieved, heater could     

    

o

 ash. Check dr

a

t-reset i  needed. 

 

 

 

    have excessive amount 

o

 ash and 

    

 

 

    w

o

n

t allow 

s

icient dra t. 

8. Heater establishes  lame  

 Phot

o

e

e cant

 ee

lame. 

 

 Clean photo 

e

e

which is smoked up 

b

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

d

s

rom lame 

    Need to reset primar

y

 

    cone m

a

 have ash.  

    

    end cone. (See Figure 5 & 8). 

 

 

 

 

 Flame too small 

 

 

 

 Increase pump motor speed (See Figure 7).

 

9. Proper dr

a

t setting    

 Negative dr

a

t in building 

 

 M

a

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 buil

d

s

/

Heater 

 

 Clean ash and soot  rom combustion chamber and heat  

 

 

 

 

 

 

 

    exchangers. 

10. Poor or reduced heat 

 Flame too small 

 

 

 Nozzle m

a

be plugged with debris-usuall

a

ter  ilter is cleaned. 

      production. 

 

 Entir

e

uel suppl

 m

a

 be plugged. 

 Clean  ilter both, oil strainer and oil pump screen. 

 

 

 

 

 

Excessive ash buildup exchangers 

 

 Clean ash  rom combustion chamber and exchangers.

 

 

 

 

 

 

Through vision port, check  lame 

 

 M

a

need to readjust pump 

R

PM. (Use knob on pump motor). 

 

 

 

    to see i   lame is smaller than usual. 

   (See Figure 7). 

 

Troubleshooting 

Summary of Contents for OMNI OWH-150

Page 1: ...nd service instructions OWH 150 120v Manual EconoHeat 5714 E First Avenue Spokane Valley WA 99212 800 255 1363 www econoheat com Rev 01 2017 240 V Omni Heat NZ P O Box 112 Cromwell 9342 32 Ree Crescen...

Page 2: ...Procedures Page 6 Stack Installation Page 7 Oil Supply Tubing Page 7 Wiring Page 8 Ducting Page 8 Oil Burner Page 9 Oil Burner Technology Page 11 Initial Start Procedure Page 13 Maintenance Schedule P...

Page 3: ...causing quick ilter plugging NOTES The instructions contained in this manual apply to the installation operation and service of OMNI Waste oil ired heaters The following instructions should be careful...

Page 4: ...aintenance Requirements Identical to any gas or oil furnace without adequate draft over the ire the combustion gases cannot escape the furnaces The lame will lengthen resulting in an overheated combus...

Page 5: ...ice in materials speciications and models or to discontinue models 2 These appliances are designed for commercial or industrial use only Installation and use of this waste oil burning appliance shall...

Page 6: ...Page 6 OMNI by EconoHeat Installation Procedures Figure 1 Installation Diagram...

Page 7: ...and water from tank periodically 3 Use only an inside oil storage tank to supply heater Do not draw from an outside tank especially not an underground tank directly to heater A separate transfer pump...

Page 8: ...ounting point in main junction box green screw 2 Connect wires from main junction box to remote oil pump power yellow to yellow and neutral common white to white 3 Wire low voltage thermostat into T m...

Page 9: ...990 and the requirements of the inspection authorities having jurisdiction WARNING Igniter Transformer Air Band combustion air supply adjustment Power Indicator Run Indicator Figure 3 Oil Burner Back...

Page 10: ...Motor Compressor Flame Cone Nozzle Electrodes Figure 5 Oil Burner Front View Figure 6 Oil Pump Diagram Oil Inlet Oil Outlet Mounting Flange 3 or 4 bolt universal pattern Vanes Carbon Plate Remove Cov...

Page 11: ...e waste oil enters into the Oil Pre Heater Block igure 4 and is pre heated to operating thermo setpoint then compressed air from the air compressor igure 3 is mixed with the oil prior to spraying out...

Page 12: ...Circuit Board igure 4 Precisely controls temperature of the Oil Pre Heater Block and controls safety feature of not allowing burner to energize until oil has established operating thermo setpoint or s...

Page 13: ...d off apply power to the burner Switch burner main power switch to ON position After allowing the oil pre heater time to establish temperature setpoint approximately 5 minutes Jump the T terminals on...

Page 14: ...k to loosen soot remove stack at top of heater and tap thoroughly Then vacuum upper heat exchanger s Inspect electrode adjustment igure 10 below Due to erosion adjustment may change Replace nozzle eve...

Page 15: ...ozzle down to bottom out pre heater stand To adjust open burner clean out door igure 8 bleow loosen Preheat Sink securing nut and set screw push fore or aft as needed WARNING This adjustment is done a...

Page 16: ...zzle Thermocouple Figure 11 Pre Heater Block Detail Removed From Burner for Clarity Snap Switch Figure 10 Electrode Adjustment Detail When cleaning inspect all three pieces thoroughly When disassembli...

Page 17: ...ilter above Pancake Style Filter below Remove 4 bolts for access to strainer ilter CAUTION must be careful not to destroy the inner gasket during removal of the housing Figure 13 Pump Strainer Figure...

Page 18: ...ma have oreign material in them up carbon I carbon is present pre heat circuit is mal unctioning Thermocouple heat sensor wire could have open circuit Heat control board ma have blown circuit and cir...

Page 19: ...eplacement parts only Oil heater block twenty 20 years parts only Oil heater block controller PCB three 3 years parts only All other components one 1 year parts only This warranty is void if Warranty...

Page 20: ...occur as a direct result of 1 improper draft either by inadequate initial installation and setup which requires a establishing a proper draft during installation b back draft has occurred due to ash b...

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