Possible Malfunction During Operations And Remedial Procedure For Heater Ignition; Problems - Planar 9D-12 Operation Manual

10.3 An untimely switch to a winter type of fuel may cause a paraffin blockage in the
fuel inlet tube filter (if applicable) located in the fuel tank and in the fuel supply
pump filter, which may prevent the heater from starting or cause it to stall in mid-
operation.
To fix breakdowns, proceed to the following steps:
1) remove the fuel supply pump from the vehicle; using a wrench (F/A 17), fix the
pump in place, unscrew the pipe stub and remove the filter (see figure 10). Do not
fix the pump in place using surfaces other than surface A when removing and
installing the pipe stub;
2) rinse the filter in gasoline and blast it with compressed air;
3) install the filter into the fuel supply pump; use sealant when installing the pipe stub;
4) install the fuel supply pump and check if the heater works.
10.4 Check the battery charge level on a regular basis.
10.5 It is recommended to switch on the heater with vehicle ground breaker closed.
10.6 While long storage of the vehicle it is recommended to switch off the heater from the
vehicle battery to avoid its discharging (current consumption in non-operation mode
30-40 mA).
11 Possible malfunction during operations and Remedial Procedure for Heater
Ignition Problems
11.1 Certain problems may be solved without contacting a maintenance station. If the
heater does not operate when switched on, proceed to the following steps:
1) check the fuel level in the tank and in the fuel supply line beyond the fuel supply
pump,
2) check fuse 25А,
3) check to see that all the contacts of the connectors and the fuse block are
securely joined (contact corrosion is possible),
11.2 All other arisen malfunctions can be determined by quantity of blinkings of a light-
emitting diode on the control panel (CP). The quantity of blinkings and codes of
malfunctions are specified in manual of the control panel.
11.3 If there are malfunctions except those specified in 11.1, please contact an authorized
maintenance station.
Figure 10. Fuel pump
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