AUTOTERM FLOW-5D User Manual

27
Code
Malfunction
description
Cause of malfunction
Recommended troubleshooting
methods
21
Flame blow off in
the “WARMUP”
mode
Poor conditions for
combustion. Lack of fuel/air,
the heat exchanger is fouled, the
exhaust pipe is clogged
Check the air intake, the gas exhaust
pipeline, and fuel supply, resolve the
fault(s), and replace the fuel pump and
the flame detector if necessary
22
Fuel pump fault
(open circuit)
Open circuit in the fuel pump
wiring
Check the fuel pump
24
Rapid temperature
change indicated
by one of the
sensors
Possible overheating near one
of the temperature sensors due
to poor coolant circulation
1. Check the entire liquid circuit for air
blocks.
2. Check the pump.
3. Check the overheating sensor and the
temperature sensor.
4. Check the antifreeze for suitability at
current ambient temperatures
25
The coolant is
being heated up
too quickly
The liquid heater goes into the
cooling down mode three times
in one cycle in less than 6 min
27
Air blower fault
The motor does not rotate
(movement is possibly
obstructed)
Check the fuel system. Check the
secureness of the fuel line clamps, the
seal of the fuel line and the fuel pump
nozzle, as well as the fuel pump capacity
28
Air blower fault
The motor rotates
uncontrollably (possible fault in
the 5 V power supply to the
control unit)
29
All ignition
attempts failed
with the liquid
heater in operation
Ignition has been tried more
than four times
Check the fuel system. Check the
security of the fuel line clamps, the seal
of the fuel line and the fuel pump nozzle,
and the fuel pump capacity
30
Flame blow off in
the combustion
chamber due to a
voltage drop
The air blower stops when the
vehicle voltage drops
Check the battery and wiring. (Voltage
drop may be caused by long operation of
the electric starter.)
37
Liquid heater is
locked
Malfunction 13 appears three
times in a row
Find and eliminate the cause of the
malfunction.
Unlock the liquid heater
50
No communication
between the
control panel and
the router
Short or open circuit in the
wiring
Check the 5 A fuse.
Check circuits and terminals
78
Flame blow off
Flame blow off during
operation.
Information warning (not a
critical fault)
Occurs to inform the user.
Check the security of the fuel line
clamps, the seal of the fuel line and the
fuel pump nozzle.
* If error 13 appears three times in a row during liquid heater start, it will be locked.
This lock is to prevent excess fuel supply to the combustion chamber. In case of lock,
the fault code 37 will be displayed on the control panel.

AUTOTERM FLOW-5D Specifications

General

Brand	AUTOTERM
Model	FLOW-5D
Category	Heater
Language	English