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FAULT
DESCRIPTION
CAUSE
REMEDY
Lockouts caused by Flame - Related to the TER equipment
F10
Failure to ignite flame after 4 attempts
performed by the equipment.
• Phase and neutral reversed.
• Earth wire not connected.
Manual reset
F11
Ill-timed flame (Flame detection before
the ignition of the piot group)
• Phase-phase connection without neutral.
• Start-up electrode failed or badly positioned
• Detection electrode failed or badly positioned
F12
Failure of ignition; not visible. The
count, displayed in the historical list,
indicates whether the heater has had
problems with ignition.
• Detection electrode that moves or disperses to the
earthing system when hot.
• Condensate detection electrode defective or in contact
with the ground
• Low CO2 value
F13
The TER equipment does not accept the
reset command from CPU-SMART
TER has finished its 5 reset attempts in the period of 15
minutes.
Wait 15 minutes or use reset
button on equipment
F14
Lack of communication between TER
equipment and CPU for more than 60
seconds
TER equipment or CPU-SMART PCB broken
Auto-reset
F15
The CPU-SMART PCB sent the ignition
signal to the equipment. After 300
seconds, the equipment has not yet lit
the flame.
Safety thermostat blocking start up
Check contact closing
• No mains gas pressure
• Live and neutral reversed.
• No or faulty earth terminals
• TER equipment broken
Manual reset
F16
Generic equipment block
TER equipment broken
Manual reset
F17
Internal malfunction of TER equipment
that does not accept reset command
from CPU-SMART
TER equipment broken
Manual reset of equipment
Lockouts caused by temperature (safety blocks)
F20
Activation of safety thermostat STB
• Excess air temperature due to lack of air circulation
• Safety thermostat broken or not connected
Manual reset
F21
Input ID1 open caused by: NOT USED -
Jumped
ID1 - IDC1 jumper missing
Manual reset of CPU-SMART
FAN lockout - burner ventilator
F30
Fan speed too low in start up phase -
VAG
Burner fan broken.
FAN electrical cables broken or not connected
Manual reset
F31
Fan speed too high in start up phase -
VAG
F32
Fan speed, during operation, out of
minimum and maximum set parameters
- VAG
Manual reset, auto- reset after
5 minutes
NTC probes broken or missing
F41
Probe NTC1 error, air intake
temperature
Absence of signal from probe or broken probe
Auto-reset
Over-temperature
F51
Temperature of the air intake probe
NTC1>TH1
• The minimum heat output of the PCH heater module is
over-dimensioned compared to the heat output required
by the environment.
• Check the TH1 parameter - air intake set point.
Auto-reset if NTC1< TH1-15
Check ModBus communication
F60
Communication error between CPU-
SMART PCB and ModBus network,
SmartControl or SMART.NET
• ModBus network is disconnected.
• The address of the PCB is wrong and/or not configured
in the ModBus network.
Auto-reset
Lack of voltage
F75
No voltage during operation cycle
(excluding stand-by);
the fault is not visible on remote control
but only counted.
No voltage during operation
Auto-reset
Internal malfunction of CPU-SMART PCB
F00
Internal malfunction of CPU-SMART
PCB
Perform a manual reset of the PCB; replace the CPU-
SMART if the problem persists.
Manual reset
43
Содержание 48UA-UH 135
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