Enviro 828 DV.INS. - Manual (Page 22)

14. TROUBLE SHOOTING
Problem
Possible Cause Solution
Spark will not light the pilot after
repeated pressing of spark ignitor Defective piezo ignitor Check connections to ignitor
-If ignitor connections are good but there is
no spark-replace ignitor
Broken spark electrode -Check for broken ceramic insulation
replace, electrode if broken
Mis-aligned spark electrode -If spark is not arcing from the electrode to
pilot- adjust by loosening screws on pilot
base. Adjust and re-tighten
Pilot will not remain lit Problem with thermocouple circuit -Check for proper connection of
thermocouple to rear of valve. If loose,
tighten lightly
-Check pilot for full flame impingement
around thermocouple. If the pilot is to small
- Check gas pressure, adjust pilot rate
screw, check pilot head for blockage.
-Check thermocouple voltage at valve- must
be greater than 5 mV. If low , replace
thermocouple.
Air in gas line - (Pilot flame dies while
knob is depressed.)
-Bleed line.
-Check gas line pressure.
-Contact dealer.
Burners will not remain lit Problem with thermopile circuit
(NOVASIT valve) -Check gasline pressure.
-Check for flame impingement on
thermopile, if low see “Pilot will not stay lit”
-check thermopile for a Minimum of 300 mV
when burner switched on.
-Check wiring to thermostat for breaks.
Flame lifting Leak in vent pipe
Improper vent configuration
Terminal may be recirculating flue
gases
-check for leaks in vent connections
-check vent configuration with manual
-check to see if terminal is on correctly
-May need to install high wind termination
cap
-contact dealer.
Glass fogs up Normal conditions - after the appliance warms up glass will clear
** Due to additives in gas, glass may get hazy during normal use**
Clean when needed.
Blue flames Normal during start - flame will yellow as the appliance heats up.
Flames are burning “dirty” or
Sooting
Flame impingement -check log position
-increase primary air by opening venturi
shutters
see also “Burners will not stay lit”
Flame goes out / comes on
frequently during a short period of
time
Improper placement of thermostatic
bulb move bulb to cooler location
22