Dayton Operating Instructions and Parts Manual
Model 3VG79
Troubleshooting Chart
Symptom
Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur.
Possible Cause(s) | Corrective Action |
Heater ignites, but
1. Wrong pump pressure | 1. See Pump Pressure Adjustment, page 6 |
2. Dirty air output, air intake and lint filters | 2. See Air Output, Air Intake and Lint |
| Filters, page 6 |
3. Dirty fuel filter | 3. See Fuel Filter, page 7 |
4. Dirt in nozzle | 4. See Nozzle, page 8 |
5. Dirty photocell lens | 5. Clean photocell lens |
6. Bad | 6. Replace |
Heater will not ignite, but motor runs for a 1. Wrong pump pressure | 1. See Pump Pressure Adjustment, page 6 | |
short period of time | 2. Carbon deposits on spark plug and/or | 2. See Spark Plug, page 7 |
|
improper gap
3.Dirty fuel filter
4.Dirt in nozzle
5.Water in fuel tank
6.Bad fuel valve
3.See Fuel Filter, page 7
4.See Nozzle, page 8
5.Drain and flush fuel tank with clean kerosene. See Storing, Transporting, or Shipping, page 9
6.See Fuel Valve, page 7
High Voltage!
7.Electronic ignitor not grounded
8.Bad electronic ignitor
9.Spark plug not oriented properly
7.Make sure electronic ignitor mounting is tight
8.Replace electronic ignitor
9.See Spark Plug, page 7
Motor does not start when heater is plugged in, fan rotates slowly or does not turn
1. | 1. Press |
2. Solid state relay not | 2. Wait two minutes before trying to |
allowed to reset | restart heater |
3. Binding pump rotor | 3. If fan is hard to turn, see Pump Rotor, |
| page 8 |
®
15
Version B - For Reduction | G016.J |