Dayton Operating Instructions and Parts Manual
Model 3VH22
Troubleshooting Chart
Never attempt to service heater while it is connected to propane supply, operating, or hot. Severe burns can occur.
Symptom | Possible Cause(s) | Corrective Action |
|
|
|
Burner fails to light | 1. Propane supply valve closed on propane | 1. Open propane supply valve slowly |
| tank(s) |
|
| 2. Excess flow check valve closed | 2. Close propane supply valve on propane |
| 3. Blockage in burner orifice | tank and reopen slowly |
| 4. Piezo ignition system not sparking | 3. Replace burner orifice |
|
| 4. Assure ignitor electrode gap is .195". |
|
| Check wire lead for damage. Replace |
|
| piezo ignitor and/or ignitor electrode as |
|
| necessary |
|
|
|
Burner lights but goes out when auto- matic control valve button is released
1.Not enough
2.Low gas pressure
3.Thermocouple loose or needs to be replaced
4.Automatic control valve needs to be replaced
1.Relight, hold automatic control valve button in 45 seconds
2.Check propane tank(s) for proper gas supply
3.Tighten connection or replace thermo- couple
4.Replace automatic control valve
Burn rate is low | 1. Burner control is on Low |
|
2. Plugged gas orifice
3. Low gas pressure
4. Low fuel supply
1.Slightly depress control knob and rotate counterclockwise to the Medium or High position
2.Replace gas orifice
3.Check gas supply; check regulator output
4.Consult propane gas supplier
®
7
Version B - For Reduction | G016.J |
