Troubleshooting - Munters KID Serie Manual De Instrucciones

sing the RESET button and repeat the starting operations.
• Contact your supplier should any problem continue.
CAUTION
• If ignition is difficult or irregular before repeating the ignition
operations make sure that the fan is not locked and that air inlet
and outlet are unobstructed.
3.2 SWITCHING OFF
• To stop the heater, shut off the gas cylinder tap. Let the fan run until the
flame shuts down and then turn the fan switch to position O.
3.3 AIR CONDITIONING
• The heater can also be used as a ventilator.
• In this case remove the gas supply hose and connect the plug of the heater to a suitable electrical supply.
• Set the fan switch to position I.
4. MAINTENANCE
• The repairs or maintenance operations must only be carried out by qualified personnel.
• The unit must be checked by a qualified technician at least once a year.
• Regularly check the conditions of gas hose, and gas regulator if it must be replaced only use original spare parts.
• Before starting any maintenance operation on the heater disconnect from both gas and electrical supplies.
• If the unit has not been used for a long period we advise that a technician carries out a general check up before using. It is
important to control the following:
• Periodically check the gas supply hose conditions and, should it be changed, use only original spare parts.
• Check the starting electrode position (see Fig. 6).
• Check the connections of the safety thermostat and of the thermocouple: they must always be clean.
• If necessary clean the fan blade and the inside of the heater using compressed air.

5. TROUBLESHOOTING

Manual ignition models
PROBLEM
The motor does not work
Piezo does not spark
No gas flow to the burner
The burner starts but it stops as
the gas valve is released
The heater stops during operation
Automatic ignition models
PROBLEM
The motor does not work
The motor works, but the burner
does not light up and after few
seconds the heater stops
The burner lights up but after few
seconds the
heater stops
The heater stops during operation
2
CAUSES
No electricity supply
The motor is locked
Electrode in a wrong position
Faulty connection between piezo and electrode
The cylinder gas tap is closed
The cylinder is empty
The nozzle is obstructed
Gas leaks from the supply hose or from the tap
The thermocouple is not warm enough
The safety device works due to lack of cooling
Excessive gas supply
Insufficient air flow
Insufficient gas supply due to ice
formation on the cylinder
CAUSES
No electricity supply
The room thermostat is regulated too low
The safety thermostat is on
The gas cylinder tap is closed
The gas cylinder is empty
The nozzle is obstructed
The solenoid gas valve is not open
There is no spark
No connection with the earthing system
Defective connection between sensor and
safety device
Defective safety device
Excessive gas supply
Insufficient air flow
Insufficient gas supply due to ice formation on
the cylinder
SOLUTIONS
Check the terminal board with a tester
Unlock the motor using a tool
Check and set the electrode to the right position
Check and connect properly
Open the gas tap
Replace the cylinder
Remove the nozzle and clean it
Find leaks using approved leak detector and connect properly
Repeat the starting operation keeping the button pushed for a longer time
See point "The motor does not work"
Check the pressure reducer and if required replace it
Check that the motor works properly
Check and eventually use a larger cylinder or two cylinders connected
parallely.
SOLUTIONS
Check the terminal board with a tester
Regulate the thermostat on a higher temperature
Wait about one minute and then push the RESET button
Open the tap
Use a new cylinder
Remove the nozzle and clean it
Check that that the solenoid valve works
Check the position of electrode
Check and connect properly
Check and connect properly
Replace the safety device
Check the pressure reducer and replace it if required.
Check that the motor works properly
Check and use a larger cylinder or two cylinders connected together.
Fig. 6
GB