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ADVANCED TROUBLESHOOTING

Motor and transformer do not operate.

Causes:

1. Incorrect or low voltage supplied to the heater.
2. Fuse in heater is blown.
3. Thermostat defective, or not turned up to call for heat.
4. Thermostat jumper cap not in place.
5. Control board is defective.
6. Reset button has not been reset.

Solutions:

1. Incorrect or low voltage supplied to the heater. Most indirect oil heaters require a  minimum of 108 volts to operate properly. A multi-meter set to
measure volts can be used to check the amount of voltage at the end of the extension cord(s). If the measured voltage is too low, the length of the
extension cord (s) must be shortened or a thicker gauge extension cord must be used. 

2. Fuse in heater is blown. Locate and remove the in-line fuse of the heater. Set a multi-meter to measure ohms of resistance. Place a multi-meter
probe on each end of the fuse. The multi-meter should read zero ohms (continuity) or the fuse is blown. If a new fuse blows immediately, check for
possible causes. Check for incorrect voltage to the heater. Make sure the total amperage draw of all equipment running on the circuit is not too
great. If the supplied voltage and total amperage draw are correct, check the wiring in the heater for correctness and possible shorts.

3. Thermostat is defective or not turned up to call for heat. Turn the thermostat up to the highest possible setting and try to start the heater. Next
set a multi-meter to measure voltage coming out of the thermostat. If approximately 120 volts is not measured, the thermostat is defective.

4. Thermostat jumper cap not in place. Indirect oil heaters have a female socket used to attach an optional remote thermostat. If the remote 
thermostat is not being used, a jumper cap or “plug” must be inserted into the female socket to complete a voltage circuit, or the heater will not run.

5. Control board is defective. Using a multi-meter set for volts, check the hot and neutral wires which bring voltage into the control board. If proper
voltage is reaching the board then the control board is defective.

6. Reset button has not been reset. Push the reset button and try to start the heater.

Motor does not start, but ignition spark is present

Causes:

1. Control board is defective.
2. Motor is defective.
3. Motor start capacitor is defective.
4. Fuel pump seized

Solutions:

1. Control board is defective.Locate the terminals of the control board that connect to the motor wires. Use a multi-meter set to read voltage and
check for approximately 120 volts to the motor when the heater is turned on. If no voltage is observed the control board is defective.

2. Motor is defective. If the control board and the motor start capacitor check ok and the fuel pump is not seized, the motor is defective.

3. Motor start capacitor is defective. The capacitor may be tested using a multi-meter set to the lowest possible ohm range. First “short” the capaci-
tor by momentarily placing a screwdriver across the two capacitor terminals. Then place the multi-meter probes on the two capacitor terminals. The
multi-meter should read close to zero ohms (continuity) first, then slowly move to infinity on the multi-meter. If not then the capacitor is defective.

4. Fuel pump seized. With the heater unplugged, stand behind the heater and attempt to turn the fan blade clockwise by hand. If the fan blade is
difficult to turn, undo the connection between the motor shaft and the pump shaft. Attempt turning the fan blade again. If the motor now turns freely,
the pump has seized up. If the fan blade is still difficult to turn, the motor is defective. 

12

Summary of Contents for HVF180

Page 1: ...etain this manual for future reference 342 N Co Rd 400 East Valparaiso IN 46383 219 464 8818 Fax 219 462 7985 www heatwagon com Revision 10 12 For your safety Do not use this heater in a space where gasoline or other liquids having flammable vapors are stored NRTL ANSI Z83 7 CONST HTR ...

Page 2: ...t in death serious bodily injury and property loss or damage from hazards of fire explosion burn asphyxiation carbon monoxide poisoning and or electrical shock Only persons who can understand and follow the instructions should use or service this heater If you need assistance or heater information such as an instruction manual labels etc contact your local Heat Wagon dealer or the manufacturer W A...

Page 3: ...by other entities will not be considered Warranty claims must include model number and serial number LIMITATIONS Warrant claims for service parts wear parts such as spark plugs igniters flame rods will not be allowed Diagnostic parts such as voltage meters and pressure gauges are not warrantable Evidence of improper fuel usage fuel pressures outside of manufacturer s specification poor fuel qualit...

Page 4: ...4 TECHNICIAN ...

Page 5: ... CFM 5 6 ft ...

Page 6: ... line During this purge cycle the photocell which is connected to the control board looks for the presence of flame in the com bustion chamber If flame is detected during the purge cycle the control board locks out or removes power from all components The heater is equipped with an air proving switch air from the turning fan blade must close the switch otherwise lock out will occur Once the purge ...

Page 7: ...ressure issues keep the elbows and bends down to the absolute minimum 5 4 Shut Down Set switch to OFF to shut the flame off The fan will go on rotating for about 1 min 45 sec to cool the heater down The fan motor will automatically stop at the end of the aftercooling time then the unit can be disconnected from mains Never disconnect the supply plug to stop the heater while in operation The heat ac...

Page 8: ... Fan does not run Contact Heat Wagon Contact Heat Wagon Air switch fault Lack of fuel Check solenoid valve at pump check supply hose for leaks Remove ducting check voltage at control board 8 ...

Page 9: ...9 brown blue blue brown For Digital Thermostat Digital Thermostat On Off Switch Terminal M3 Terminal M10 Terminal M9 ...

Page 10: ...o Description 42 1 1135000500 COVER 42 2 1002004200 O RING 42 3 1002005100 GASKET 42 4 1086002800 CARTRIDGE 42 5 1002005200 O RING 42 6 1052004900 HEATING ELEMENT 42 7 1135000600 FILTER GLASS 43 1066001300 FITTING 44 1067009100 OGIVE 45 1066001600 FITTING 46 1066001600 FITTING 47 1067009100 OGIVE 48 1066001200 SUCTION FITTING 49 1095011800 HANDLE 50 1090007533 GUARD 51 CONVGEN MIR05536 AIR INLET 5...

Page 11: ...00 COVER Key No Part No Description 42 2 1002004200 O RING 42 3 1002005100 GASKET 42 4 1086002800 CARTRIDGE 42 5 1002005200 O RING 42 6 1052004900 HEATING ELEMENT 42 7 1135000600 FILTER GLASS 43 1066001300 FITTING 44 1067009100 OGIVE 45 1066001600 FITTING 46 1066001600 FITTING 47 1067009100 OGIVE 48 1066001200 SUCTION FITTING 49 1095011700 HANDLE 50 1090007633 GUARD 51 CONVGEN MIR08536 AIR INLET 5...

Page 12: ...the remote thermostat is not being used a jumper cap or plug must be inserted into the female socket to complete a voltage circuit or the heater will not run 5 Control board is defective Using a multi meter set for volts check the hot and neutral wires which bring voltage into the control board If proper voltage is reaching the board then the control board is defective 6 Reset button has not been ...

Page 13: ...cleaning the valve if it is dirty If the valve will not open fully to allow fuel spray the sole noid valve is defective If proper voltage is not read check for voltage on the control board terminals that the solenoid valve wires connect to If proper voltage is read the solenoid valve wires are defective If voltage is not read on the board terminals the control board is defective 5 Control board is...

Page 14: ...Air damper setting is incorrect 5 Transformer output is weak 6 Ducting is improper 7 Venting is improper 8 Fuel contains water or contaminants Solutions 1 Pump pressure incorrect Using a high pressure fuel gauge check the output pressure of the fuel pump If necessary use the pump s adjust ment to set the pump pressure to the manufacturer s specifications 2 Electrodes damaged or gapped incorrectly ...

Page 15: ...ermostat is defective 4 Ducting is improper 5 Venting is improper 6 Nozzle is dirty 7 Fuel filter is dirty 8 Control board is defective 9 Fuel contains water or contaminants Solutions 1 Fuel pump is defective If the fuel pump will not achieve or maintain proper output pressure the pump is defective Check the fuel pump output pressure with a gauge 2 Solenoid valve is defective Use a multi meter set...

Page 16: ...e of the fuel pump can be checked by placing a high pressure fuel gauge into the gauge port of the fuel pump Use a gauge with enough capacity to measure the high pressure your particular heater can produce Use the adjustment on the pump to set the pump pressure to the manufacturer s specifications 2 Nozzle dirty or worn Clean the nozzle using compressed air Never use anything metal to clean the no...

Page 17: ...e impurities in the fuel traveling under high pressure thru the nozzle orifice can enlarge the orifice This is especially true when diesel fuel is used A worn nozzle can cause the heater to run rich and possibly over fire the heater enough to activate the safety thermostat and cause a shutdown Replace after 400 hours of operation 3 Incorrect fuel Only use the manufacturer s recommended fuels Never...

Page 18: ...Chimney Exhaust Set Up 18 9 ft 30 ft 15 ft 3 ft 12 ft ...

Page 19: ... HVF300 AR300 FLUE STACK EF1 THERMOSTAT THIDF FUEL PRESSURE GAUGE BIE99AM003 342 N Co Rd 400 East Valparaiso IN 46383 219 464 8818 Fax 219 462 7985 www heatwagon com DUCTING HVF180 WD1225 12 Diameter 25 Long HVF300 WD1825 18 Diameter 25 Long ...

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