E31H or E32H code: Ignition failure
June 29, 2023
For diesel combi heater
1, Check the oil system, and make sure the length of the blue oil pipe(0.5- 1.2ms from the tank to the pump) and the white oil pipe(2-6.8ms from the pump to the heater) is correct. Make sure there are no air bubbles in the oil pipes and no gaps inside of the black oil connectors. The fuel filter could not be conneted with the pump directly, there must be a black fuel connector between, and there should be no gaps between any fuel pipe connections.
How to make sure the oil pipes are without air bubbles?
Method one: Use the priming function on the controller to ensure an air-free fuel supply to the heater burner. Run the oil pump, but disconnect the oil pipe to the heater.
Method two: Disconnect the oil pipe to the heater and turn the heater on by
the control panel, when the oil comes out from the oil hose continually,
connect the oil hose to the heater.
2, Check the oil pump install, with the buffer, do not remove it. Install it within a reasonable angle.
3, Commercial diesel supply, fuel line is not leaking
4, IF the silver exhaust pipe inside the black air inlet pipe is loose;
5, The exhaust and air intake pipe should be straight, smooth, with no bending, and no deformed.
6, Length within 60-100cm, 60cm is advised.
7, The installation direction must be upward.
8, The air intake for combustion must be clean and well-ventilated.
For LPG combi Heater
1, The gas tank is full and the gas material is pure and high quality, easy to
ignite.
2, The gas regulator/gas valve on the gas tank is 30mbar. Can try with a
different new valve to see if it fixes the problem;
3, Make a short video of the heater reaction when you turn the heater on, we
need to hear the heater’s sound when it is turning on.
4, Check the silver exhaust pipe and fixing clips are not loose. Check if the end
in the middle of the wall is not sealed well.
5, Check if use our black copper gas pipe, 8mm pipe.