Ariston microGENUS HE 28 MFFI Installation And Servicing Instructions

62
1. Check the fan cable
2. Replace the fan
3. Replace the main P.C.B.
1. Check/replace ignition
electrode
2. Check ignition cable
3. Check/replace the main P.C.B.
Replace
the main P.C.B.
I
S THE FAN
RUNNING?
DOES CODE
E33 APPEAR?
IGNITION
SPARKS ARE GENERATED
REGULARLY?
YESYES
NONO
NONO
YESYES
YESYES
N
ONO
1. Check the power supply
of the gas valve.
2. Check for an air
pressure signal
3. Check the gas pressure
on the burner
4. Check the soft-light
adjustment
5. Replace the gas valve
6. Check/replace the
main P.C.B.
1. See section 3.7
2. Press RESET
1. See section 3.7
IS THE BURNER
ALIGHT?
BOILER HAS
SHUTDOWN?
YESYES
YESYES
NONO
NONO
IS
THERE STILL
A PROBLEM?
NORMAL
OPERATION
NONO
YESYES
B

Ariston microGENUS HE 28 MFFI Specifications

General

Brand	Ariston
Model	microGENUS HE 28 MFFI
Category	Boiler
Language	English