48
CHAP.09 FAULT DIAGNOSIS AND TROUBLESHOOTING
09.1 PROBLEMS
PROBLEM
MAIN CHECKS TO BE PERFORMED
The pellets are not moving
to the firebox
• The pellets have run out, refill the hopper.
• The gear motor is not running, check the reason:
- Not connected to the mains.
- Mechanically disconnected from the auger.
- Gear motor broken.
• The auger is blocked by a foreign body which has fallen into the hopper.
• The auger is blocked by very hard pellets; use the recommended pellet types (see
CHAP.06.2 -
RECOMMENDED FUELS
).
The appliance does not
start automatically
• The basket is dirty. Clean carefully and reposition it correctly.
• The basket is positioned incorrectly, replace it.
• The resistance is faulty, replace it.
• Stove started with correct pellet pre-load.
T h e p e l l e t s b u r n
incorrectly and unburnt
elements gather in the
basket, the door glass
quickly dirties
• The amount of pellets loaded in the basket for the various output modes does not correspond to the amounts
indicated in the Technical Specifications (see
CHAP.06 - TECHNICAL DATA
), check and correct the
parameters.
• Low flue draught, do not use the fireplace, it could be dangerous; carefully clean the flue, the appliance and
the fume extractor.
• Firebox is very dirty. Switch off the appliance and clean it.
• Humid pellets. Replace the fuel.
• The comburent air is scarce; make sure that the pellet drawer is well closed, that it is not full of ash.
• Insufficient comburent air settings, change the comburent air flow value.
• Check air inlet in the burner.
The appliance switches off
when running at minimum
power.
• The combustion fan speed is very high and the pellets are burning too quickly.
• The pellet supply is running out.
• The flue draught rate is too high.
• The pellet load is too high, it does not all burn within the set time and fresh pellets accumulate inside the
firebox.
Adjust the load level, or correct the combustion fan speed.
• Pellet size is very small, adjust loading time
The flame is very
inconsistent
• Check the bottom of the pellet container; there may be large deposits of sawdust.
• The gear motor may have broken gearings, running empty.
A lot of condensation is
created in the stove
• The pump start temperature limit is too low. Raise temperature to minimum 65°C.
• The anti-condensation valve may require replacement.
The electric components
are running when the
appliance is switched off
• The electronic circuit board is broken. Replace it.
The circuit breaker trips
• At first start up or after prolonged disuse, condensation may form on resistances. Repeat start up until the
resistance expels all humidity.
The radiators do not get
hot even if the water in the
boiler is hot and the pump
is running
• Air in the system: Vent all radiators, pump and boiler.
• Check whether any intercepts (zone vales) are closed.
In accordance with the laws in force on safety for electrical appliances, a Jolly Mec Technical Assistance Centre
or qualified personnel must obligatorily be contacted for all installation, maintenance or interventions that require access to
electrical parts.
WARNING
