PV20a / PV30a pellet burner
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DK9902A1 www.pelltech.eu
NO PELLETS
Max loading time is reached, but level sensor hasn’t detected enough fuel in feeder within
4 minutes in BURNING state or 5 minutes in LOADING state or 20 minutes after manual or
initial start.
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No pellets in container. Check existence of pellets, refill container.
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External auger is out of order. Check fuse F1, check cable plug connection with burner.
Replace fuse F1 or auger (4.8.3. and 4.8.7).
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Fuel level sensor is broken or short. In this case transparent tube has to be filled with
pellets. Replace sensor (4.8.4).
Level sensord do not detect pellets.
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There might be too much sawdust in container and external auger can’t reach the
pellets. Remove sawdust.
NO FLAME
Flame is disappeared more than 120 seconds at PRE-BURN or at BURNING time.
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Fuel level sensor is dirty or broken. Check sensor, clean or replace if needed (4.8.4).
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Flame sensor is dirty or smelt. Clean or replace sensor (4.8.5
).
FLAME ERROR
In BURNING state within 1 minute flame sensor has not recognised the flame.
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Too many pellets in burning chamber are extinguished flame.
• Flame sensors are dirty or melt.
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Clean or replace sensors (4.8.5)
• Flame doesn’t disappear in END BURN status within 6 minutes.
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Too many unburnt pellets in burning chamber.
SRP
Appears in screen for some seconds when turning on the burner.
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If message doesn't dissapear press any button on the front panel.
FEEDER
ERROR
Feeder auger has not made any rotations in 8 seconds at its running time.
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Feeder auger motor’s rotation sensor is too far from magnet. Check sensor’s
placement. Adapt placement if needed. Sensor has to be located 2...3mm far from
magnet on motor’s axis and has to be possibly on the magnet. At same time it must not
to touch motor’s rotating parts.
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Feeder auger motor’s reductor may be broken (if motor makes noise). Replace both.
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Feeder auger motor current has reached its limit and over-current protection applied.
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Feeder auger may be blocked or jammed by foreign object. Remove obstacle.
FAN ERROR
Fan has not reached enough speed at testing time.
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Fan motor’s rotation sensor is too far from magnet. Check sensor’s placement. Adapt
placement if needed. Sensor has to be located 2...3mm far from magnet on motor’s axis
and has to be possibly on the magnet. At same time it must not to touch motor’s
rotating parts.
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Fan doesn’t rotate. Bearings too dusty or fuse F2 is blown. Clean bearings or replace
fan. Replace fuse (4.8.3).
NO POWER
The mains supply doesn’t reach controller.
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Due to back-burning safety thermostate has turned mains off. Reset thermostat (4.8.2).
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General blackout. Wait for its end. Restart burner by holding OK button down 3 seconds
or changing in main menu BURNER from OFF to ON.
OVERHEAT
Temperature in the burner has reached in PAR43 pre-set temperature and burner turned
itself off.
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Possible back-burning caused by insufficent entrance of fresh air into the boiler room or
draugh to wrong direction. Ensure availability of fresh air and improve draught.
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Bad connection of temperature sensor. Check and improve connection.
GRATE ERROR
Existing burners don’t have ash removal system.
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Error is displayed when in PAR99 wrong type of burner is selected. Select PV20a or
PV30s depending on real type of burner.
Empty screen,
backlights on
Controller error or screen error.
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Replace respective component.
The contrast of screen is poor.
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Contrast can be adjusted with small screwdriver by turning the resistor CONTR on down
