11.
Faults,Causes & Solutions
In the case of the device failure, the following list may help to determine its location. Generally, its removal is fairly
easy. The most frequently occurring problems are listed below. .
NOTE:
Prior to performing any maintenance or repair activity of the device, disconnect its power plug from the
power socket
.
No. CAUSE
SOLUTION
1
No power supply.
•
Check if the plug is in the socket and check
the fuses.
2
Water or deposit in the tank.
•
Clean the tank and filter.
3
The pump motor does not turn on.
•
Check STB and overflow protection.
4
The motor and pump do not operate.
•
The fuel is too thick or too cold. Dilute with diesel oil.
•
Check the pump control thermostat and replace it if
needed.
•
Check the motor and see if the pump is not soiled on the
inside.
•
Check STB and overflow protection.
5
The fuel ducts is obstructed, oil
returns to the tank through the primary duct.
•
Clean the fuel duct and replace it if needed.
6
The pump operation control thermostat has not reached
proper temperature.
•
Wait until the furnace cools down and restart it.
•
Replace the thermostat.
7
The overflow protection is full.
•
Clean it.
8
The safety thermostat (STB) does not operate
properly or at all.
•
Reset the thermostat by pressing it.
•
Replace it.
9
Insufficient combustion air supply.
•
Clean the furnace chamber openings.
•
Check proper operation of the fan.
10
Improper draught.
•
Check if the stack pipe is mounted according to recommendations
entitled: “Stack ducts installation”.
•
Check tightness of the stack system.
•
Clean if necessary.
11
The stack draught is too strong or alternates to
much.
•
Install the draught stabiliser and adjust it to min. 2 mm W.C.
(19.6 Pa).
12
The stack draught is too weak.
•
Check all connections.
•
Decrease the number of bends.
•
Elongate the stack.
•
Insulate the stack pipe outside the building.
•
Review all information regarding the stack duct in the Manual.
