Troubleshooting Table; Faults - THERMOBILE AT 306 US Manual Del Usuario

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5.6 Remove the fuel tank(fig. 8)
1. Remove the fuel supply (A).
2. Take off the connection plate (B).
3. Take plug (C) from the chassis part.
4. Pull up the tank lock (D).
5. Pull the fuel tank (E) from the heater with
care.
6. Install the fuel tank in reversed order.
6.1

Troubleshooting table

/i
Fault
The flame goes out
directly after ignition.
14
Cause
1 The heater has no volt-
age.
2 There is water or sedi-
ment in the fuel tank.
3 The fuel pump is not
switched on.
4 The waste oil is too vis-
cous or too cold.
5 The fuel supply pipe is
blocked: The fuel flows
back into the fuel tank
through the return pipe.
6 The pump thermostat
has not reached the
right temperature yet.
40.020.941 - rev. 04 - 2011
6

FAULTS

Warning
For all service and adjustments
contact qualified, competent and
authorized persons.
Warning
Switch off the power supply before
carrying out any repairs!
Ensure that the power is switched on,
and the fuel tank is full, before you
start troubleshooting.
Solution
Check the electric connec-
tion.
Clean the tank and the fuel
filter, see fig. 3 (F).
Position the switch to "1", see
fig. 5 (A).
Dilute the waste oil with die-
sel oil.
Check the pump thermostat
and replace if necessary.
Check the pump motor.
Check the fuel pump for dirt. Dealer
Clean the fuel supply pipe,
see fig. 3 (O).
Let the heater cool down.
Restart the heater.
Let the heater burn longer
with the switch on "1", see
fig. 5 (A).
Action
User
User
User
User
Dealer
Dealer
User
User
User
AT 300-US series