KAMAZ 5490 Operation Manual page 232

9 Possible malfunctions, their reasons and
ways of their elimination
9.1 Some malfunctions that can be eliminated in-
house:
- the buttons on the control panel don't glow
To determine the reasons it's necessary to check
(replace) the protecting device, check the supply circuit
and sockets of the harnesses connecting the panel and the
heater;
- the heater doesn't start.
If this malfunction occurs code № 2 "Two attempts of
startup are exhausted" glows. Check the presence of the
fuel in the fuel tank and the work of the fuel pump.
9.2 All possible malfunctions that may occur
during the heater operation are displayed as malfunction
codes on the control panel. Each malfunction code is
displayed on the control panel as repeated flickers and
intervals of the light emitting diode (red) and is
accompanied by a sound signal.
Attention: At this time the sound signal can be
switched off by pressing and holding the button of the
corresponding program for 2-3 seconds.
The decryption of the number of flickers at the
malfunction of the corresponding program (malfunction
codes) are shown in chart 3.
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