PENSOTTI PNCC-32N Instruction Manual page 74

ERROR
PROBLEM
CODE
GENERAL PCB
E21
MALFUNCTION
PARAMETER
PROGRAMMING
E22
REQUEST
FLAME DETECTION
E35
MALFUNCTION
ELECTRIC POWER
E40
SUPPLY
Burner Electrode & Ionization Specifications
Pressures in excess of 14"WC may damage the internal components of this boiler. Pensotti REQUIRES replacment of
the gas valve if it is subjected to pressures in excess of 14"WC. Faliure to comply could cause dangerous operating
conditions, fire, explosion, bodily injury or possible death.
MAINTENANCE INSTRUCTIONS
POSSIBLE CAUSE
y.
MICROPROCESSOR
MALFUNCTION: IT
DETECTS A WRONG
SIGNAL .
w. LOSS OF
MICROPROCESSOR
MEMORY.
x. IONISATION ELECTRODE
MALFUNCTION
y. IONISATION ELECTRODE
CABLE MALFUNCTION
z. PRINTED CIRCUIT BOARD
MALFUNCTION
aa. ELECTRIC POWER
SUPPLY OUT OF THE
OPERATION RANGE (≤95
/≥130 volts)
REMEDY
u.
THE PCB RESETS THE ERROR
AUTOMATICALLY
w. REPROGRAM PARAMETERS.
x. REPLACE OR CLEAN PART
y. REPLACE PART
z. REPLACE PART
aa. CHECK THE POWER SUPPLY
NETWORK (THE ERROR
DISAPPEARS AUTOMATICALLY
WHEN THE POWER SUPPLY IS
BACK WITHIN THE REQUIRED
RANGE)
71
RESET
Automatic
Manual Reset
(Switch off the
power supply)
Manual Reset
(press the ' '
Reset button)
Automatic