A unique code is printed on the bottom of your engine heater that will identify which instructions to use.
#092301 to #122335 use V6 instructions.
#11240 and on use V7 instructions.
This video is a simple way of testing your heater if you suspect a problem. Generally, if the heater has a problem, it will display an error code. Red light flashing.
If your heater is not achieving temperature this test will confirm if the heater is faulty or it’s a connection issue to the engine.
Method;
1. Connect a hose from the heater outlet and then loop back to the heater return.
2. Fill the heater and hoses with coolant.
3. Circulate the coolant with the radiator cap off to ensure correct coolant level.
4. Once level is confirmed, turn the pump switch off and reinstall the radiator cap.
5. Turn heater on to begin heating.
6. The test will take approx 6 minutes.
7. Monitor the temperature of the outlet fitting and inlet fitting. There can be a slight temperature variation from outlet to inlet hoses.
8. The heater will stop heating once temperature has been achieved.
9. Turn the big black switch off and allow cool down.
10. Once the red light on the big black switch disappears, turn the main power switch off and disconnect the hoses.
