KAMAZ 5490 Operation Manual page 233

The number of Malfunction
flickers before
the interval
1 The voltage in the accumulator
battery is not normal
2 Two startup attempts have been
wasted
3 Flame
combustion chamber
4 The electric pump failure
5 The fuel pump failure
6 Failure of the circuit of the
environment temperature sensor
7 The air pump circuit failure
8 The glow plug failure
9 There is no connection with the
control panel
10 Failure of the circuit of the
incoming liquid heat sensor
11 Failure of the circuit of the
outgoing liquid heat sensor
13 The heat
overheated
Guidelines on malfunctions elimination
Check the voltage in the connector. The voltage must be from 20-30 Watt. If
voltage is less than 20 Watt, charge or replace the accumulator battery; if it's
more than 30 Watt, check the voltage regulator.
Check the presence of fuel in the fuel tank, disconnect the hose pipe from the heater
and check the fuel supply. At the lack of fuel check the work of the fuel pump and
replace it if necessary. Check if the air-take filter and the exhaust pipe are blocked.
breaking in the Check the amount of supplied fuel. Check if the air-take filter and the exhaust
pipe are blocked. If the heater turns on and off check the flame indicator and
replace it if necessary.
Check if the engine circuit with the harness is broken or failed. Resistance
between the terminals must be ~1ohm.
Not connecting the fuel pump harness from the pump check if it is broken or
failed. Resistance between the terminals must be ~20ohm.
Check the socket connecting the panel and the environment temperature
sensor, check if the harness is broken.
Check the circuit of the electric motor, change the air pump if necessary.
Check the circuit of the plug. Resistance must be ~2 ohm.
Check the socket connecting the control panel with the control unit of the
heater.
Check the socket connecting the sensor with the control unit, check if the
harness is broken.
Check the socket connecting the sensor with the control unit, check if the
harness is broken.
exchanger is Check the electric pump, the presence (the level) of the cooling liquid, the
absence of the air blocks in the liquid system.
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Chart 3