Vvkb Logo

Diesel Heater Trouble Shooting Guide

Why is this article available?

Was this article helpful to you? Please share it with as many people as possible.

With the massive entry of chinese diesel heaters into the market, the price of diesel heaters has dropped dramatically.

Choosing chinese diesel heaters to provide warmth for trucks and camper vans is becoming a more and more popular choice.

Truck-heater

You can easily buy cheap chinese diesel heater on retail platforms like Amazon and eBay.
While using one diesel air heater, you may encounter the error code of one diesel air heater.

However, a diesel heater is a relatively complex product, and only a professional can provide a fault solution.

And it is difficult for you to see the fault code solution in the user manual when the error code appears.

It is also difficult for you to seek help from Amazon or eBay sellers because, they also do not understand how diesel heaters work, the cause of the malfunction and the solution.

Diesel Heater Trouble Shooting- Solve Your Diesel Heater Not Working Problem

To make it easy for you to use diesel heaters and for you to solve the problems your customers encounter. We have written this diesel heater troubleshooting article for you.

However, please note that there are many different brands of diesel heaters in the market that have the same error code, but the cause of the failure and the solution indicated by the error code, are different.

We have compiled all the knowledge about diesel heaters, and this article will give you a detailed understanding of diesel heaters.

Please click to read.

You may not know how to choose the best diesel heater, you can read the article,

When you read the article carefully, you will become a professional in choosing the best diesel air heater

You can also write an email to us and maybe we can provide you with a solution.

You can assess the cause of your diesel air heater failure by referring to how it behaves when it fails.

In this article, let’s take Vvkb diesel air heater as a column to see the causes and solutions of the error codes that occur.

Now, let’s get started.

Please note that most of the problems are caused by improper installation methods.
There is also a part of the fault is the cable connection fails, resulting in parts cannot working properly.
Please read this article carefully before making repairs to the diesel air heater. And double check that the various connections of the diesel air heater wires are reliable.
After these checks, your diesel air heater can eliminate most failures. 

If you need to replace the accessories, we recommend that you choose the Vvkb diesel heater accessories, which are compatible with most heaters.

Glow Pin

Kyocera Glow Plugs

Fuel Pump

Silent Fuel Pump

Exhaust Pipe Clamps

Exhaust Pipe Clamps

Fuel Screen

exhaust pipe

Exhaust Pipe

Combustion blower motor

Combustion blower motor

Diesel heater burner

Fuel Tank

Fuel Tank

Exhaust muffler

Exhaust muffler

Diesel Air Heater Error Code E01 & E02

Failure Performance

Usually, the old diesel air heater has a higher probability of E01 and E02.

Vvkb diesel air heater starts working, and the heater running program will carry out a full test of all functions of the heater.
When the program detects a fault in the flame sensor, the heater will display a fault code directly.

Cause of Issue

Flame sensor failure

Error Code E01 & E02 Troubleshooting

  1. Please check the plug of the flame sensor whether it is loose, and reconnect the plug correctly.
  2. Replace the flame sensor

Diesel Air Heater Error Code E03

Failure Performance

The diesel air heater will work for more than 10 minutes and hot air is generated from the heater.

Then it stops working and an E03 fault appears.

There will be black smoke coming out of the exhaust pipe, results of incomplete burning diesel fuel.

Usually, new diesel air heaters have a higher probability of E03.

Cause of Issue

Temperature sensor exceeds alarm temperature

Error Code E03 Troubleshooting

  1. Distance from the diesel heater cooling air inlet to the obstacle, to have 10-15 cm (4 inches – 6 inches).
  2. Please check whether there is a blockage in the hot air outlet.
  3. Please check the combustion air inlet to make sure there is no blockage.
Vvkb Diesel Heater

Diesel Air Heater Error Code E04

Failure Performance

There is white smoke coming out of the diesel air heater combustion exhaust pipe and the heater stops working.

Cause of Issue

The temperature sensor detects a low flame temperature when the heater is burning.

Error Code E04 Troubleshooting

The E04 fault is usually present in both new and old heaters.

The new diesel heater has E04 fault, please check if there is enough diesel fuel in the tank. Is there any air bubbles present in the diesel fuel line and is the connection of the diesel fuel line reliable. If there are air bubbles present, please make sure the diesel fuel line is free of air bubbles.

The old diesel heater has E04 fault, The first thing to consider is that the rubber hose is aging, the diesel fuel line is aging, or the fuel filter is clogged and the silent fuel pump is clogged. Solve these problems, the diesel heater work fine.

Diesel Air Heater Error Code E07

Failure Performance

After starting the diesel heater, the runtime program will detect the voltage of the heater.
When the voltage is checked to be too high, a fault code appears on the control panel and the heater stops working.

Cause of Issue

Power supply voltage is too high.

Error Code E07 Troubleshooting

  1. The voltage of 12V diesel heater should not be higher than 15V.
  2. The voltage of 24V diesel heater should not be higher than 30V.

Diesel Air Heater Error Code E08

Failure Performance

After starting the diesel heater, the runtime program will detect the voltage of the heater.
When it checks that the battery supply voltage is too low, a fault code appears on the control panel and the heater stops working.

Cause of Issue

Power supply voltage is too low

Error Code E08 Troubleshooting

  1. 12V heater, the voltage is lower than DC 10V
  2. 24V heater, the voltage is lower than DC 20V

You need to replace the battery.

Diesel Heater Error Code E09 & E11

Failure Performance

When the diesel heater starts working, the control program will test the heater operation system.


When the glow plug failure is detected, a fault code appears on the control panel and the heater stops operating.

Cause of Issue

Diesel heaters glow plug failure

Error Code E09 & E11 Troubleshooting

The old diesel heaters will appear E09 fault and E11 fault.

With a diesel heater that has been working properly for 2-3 years, you will need to replace the glow plugs and fuel screen.

Please check that the ignition plug connection is reliable and not loose.

If the glow plug connection is reliable, the glow plug may be faulty and you need to replace the glow plug.

Diesel Heater Error Code E12 & E13

Failure Performance

After starting the diesel heater, the heater operation program will fully test the function of the heater.

When a combustion blower motor fault is detected, the heater will display a fault code and stop working.

Cause of Issue

Diesel heaters combustion blower motor failure

Error Code E12 & E13 Troubleshooting

The new diesel heater heater has a higher probability of E12 failure.
It is usually the impeller of the combustion motor that hits the heater housing. The solution is to adjust the clearance between the impeller and the housing.

 

The old diesel heaters have a higher probability of E13 failure.
It is possible that the heater motor is malfunctioning. You need to replace the combustion motor assembly.

Diesel Heater Error Code E14 & E15

Failure Performance

When the diesel heater starts working, the runtime program performs a thorough inspection of the heater components.

When a fuel pump failure is detected, the heater will stop working and a fault code will appear on the control panel.

The red light of the control panel will flash.

Cause of Issue

Metering pump failure

Error Code E14 & E15 Troubleshooting

Please check the connection of the metering oil pump. If the connection is loose, please make a new connection.


If the connection is reliable, please replace the metering oil pump.

Diesel Heaters Error Code E16

Failure Performance

If an E16 fault occurs, the diesel heaters will not turn on.

Cause of Issue

Incorrect wire connection between the diesel heater main unit and the control panel.

Error Code E16 Troubleshooting

E16 failures are usually found on new heaters.

Please check that the wire plug connection is reliable.
Or put the wrong wire connection. Please make the same wire color connection according to the color of the wires of the heater and the control panel.

Diesel Heaters Error Code E19

Failure Performance

The diesel heater will restart after a few minutes of operation and will stop working again and a fault code will appear on the control panel.
During this process, white smoke will come out of the exhaust pipe.

Cause of Issue

The diesel heater cannot start successfully

Error Code E19 Troubleshooting

The E19 fault is found in both new and old heaters.

E19 fault occurs in new diesel heaters.
Please check the fuel system for the presence of air and remove the excess air. Check the fuel tank for lack of fuel.

E19 fault occurs in the old diesel heaters.
Please check the fuel system for aging parts, fuel pump failure or aging fuel delivery line.
Aging glow plugs.

Conclusion

Many camper van owners may think that cheap chinese heaters, unreliable in quality, and more expensive diesel heaters, out of budget.

Maybe you will want to buy propane heaters. However, propane heaters use propane, and your camper van can easily get diesel. However, it will be relatively difficult to obtain propane. Moreover, the heating power output of the diesel heater is higher than the propane heater.

If you read our article, you will be able to choose the best diesel heater with the most cost-effective price.

Read another

Contact Us Now

Warmda-Parking-Heater.png

Not finding the right heater for you?

We will assist you to expand your business.

You just need to leave your email, and we will provide you with a complete solution within 8 hours.

Request A Quick Quote Now