Piazzetta P963 THERMO Instructions For Installation, Use And Maintenance Manual page 55

Problem
Pressure switch malfunction
"ALF 2" stove status
Thermal cutout
"ALC" stove status
(thermostat in the boiler)
"PUL" stove status
"NO ACC" stove status
Cause
Faulty pressure switch
No power supply to the auger
Blocked flue
Grate requires cleaning
Faulty thermostat
Faulty electronic board
Faulty circulation pump
Momentary power failure
operation
Empty hopper
Grate requires cleaning
Operating temperature not reached
Faulty glow plug (igniter)
Faulty electronic board
H07027850 / DT2000931 – 01
Replace the pressure switch (use only
original spares)
Check the electrical connections
(contact a Piazzetta After-Sales
Service Centre or an authorised
person)
Check and clean the flue.
Clean the grate (see section 7.1).
Replace hopper thermostat (use only
original spares).
Replace the electronic board (use only
original spares).
Check circulation pump operation and
replace if necessary (use only original
spares).
The stove restarts automatically and
during
continues operating normally at power
level 2.
Fill the hopper.
Clean the grate (see section 7.1).
Empty the grate and restart.
Replace glow plug (use only original
spares).
Replace the electronic board (use only
original spares).
Solution
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