Page. 26 of 29
March 2016
Edition 1
PLANAR
Troubleshooting and determination of productivity of the FP are performed as
follows:
-
before starting troubleshooting, check availability and quality of fuel in the tank;
-
make sure that the wiring and connectors are in good condition;
-
make sure that the FP works when the heater is turned on, and the characteristic knocking
sound of piston movement inside the pump can be heard;
It is allowed to remove the FP and shake it to eliminate potential sticking of the
piston within the pump due to prolonged storage or failure to perform required
maintenance;
To check the working condition of the FP, you can directly connect a power supply,
corresponding to the operating voltage of the pump, to the FP terminals for a short period
(imitating pulses). If you hear the knocking sound, the fuel pump is working;
- check the tightness of the fuel line all the way from the tank to the FP and from the FP on
to the heater.
If all of the above-mentioned problems are resolved, it is necessary to check the fuel
pump performance. The fuel pump output should be 6.5
7.3 ml per 100 strokes. If its
performance is less or more, then the fuel pump should be replaced.
FP performance check is carried out by means of the fuel-priming device UPT-4.
5.11 Functions, Removal and Replacement of Controller.
The controller (Fig.17) has the following functions:
-
start and stop of the heater in manual mode;
-
choice of operation modes, by power or by temperature;
-
display of the set temperature or power;
-
display of temperature (from the sensor integrated in the heater, the controller, or
remote when connected);
-
display of a fault code in case of heater malfunction.
To determine the performance of the controller, press any button on the controller.
It causes a light indicator on the controller to illuminate.
Fig. 17–Controller