Operating instructions

8
Dayton
®
Propane Gas-Fired Radiant
Construction Heater
Dayton Operating Instructions and Parts Manual
6BY75
117164-01A
Troubleshooting Chart
Never attempt to service heater while it is connected to
propane supply, operating or hot. Severe burns can occur.
Symptom
Burner fails to light
Pilot lights but goes out when
automatic control valve button
is released
Burn rate is low
Possible Cause
1. Gas supply valve closed
2. Excess-flow check valve
closed
3. Blockage in burner orifice
4. Piezo ignition system not
sparking
1. Not enough warm-up time
2. Low gas pressure
3. Thermocouple loose or
needs to be replaced
4. Automatic control valve
needs to be replaced
1. Main burner valve not fully
open
2. Plugged gas orifices
3. Low gas pressure
4. Low fuel supply
Corrective Action
1. Open gas supply valve slowly
2. Close propane supply valve
on propane tank and reopen
slowly
3. Replace burner orifice
4. Assure ignitor electrode
gap is 5.0 mm (0.195").
Check wire lead for damage
Replace piezo ignitor and/or
ignitor electrode as neces-
sary. Do not bend electrode,
this may cause breakage
1. Relight, hold automatic control
valve button in 45 seconds
2. Check for proper gas supply
3. Tighten connection or
replace thermocouple
4. Replace automatic control
valve
1. Fully open main burner valve
by pushing in control knob
and turning counterclock-
wise towards HIGH position
until it stops
2. Replace gas orifice
3. Check gas supply; check
regulator output
4. Consult gas supplier to
determine adequate supply.
Propane/LP tank could be
empty