diesel heater

old rockers
old rockers Forum Participant Posts: 9
edited November 2023 in Parts & Accessories #1

Hi. I have a diesel heater in the motorhome. Its a webasto 2000 stc.

It has a simple control knob that just turns from high to low. 

When i turn it on after a short while the green light flashes 5 quick flashes followed by 3 slow flashes. Then it shuts down.

I was hoping someone might know what this fault is.

Any advice would be much appreciated.

Thank you.

Comments

  • JimE
    JimE Club Member Posts: 352 ✭
    100 Comments Photogenic
    edited November 2023 #2

    Have you got any operating instructions ? 

    I googled the make & model of your heater and found this manual.  It contains an explanation of how to decode the flashes to work out the fault code.

    Hope this helps.

  • onepjg
    onepjg Forum Participant Posts: 282
    edited November 2023 #3

    Most common problems with Webasto are

    Not enough diesel in tank

    Exhaust outlet is blocked with debris.

    Will then need a power down by removing the fuses next to heater, then fuses in and restart. Running engine whilst starting heater also helps with low voltage.

    Good luck

     

    Air Top 2000ST

    F00 Control unit error
    F01 No start (after 2 attempts to start)
    F02 Flame failure (at least > 3)
    F03 Undervoltage or overvoltage
    F04 Premature flame recognition
    F05 Flame monitor (petrol heater) interrupt or short circuit
    F06 Temperature sensor interrupt or temperature sensor short circuit
    F07 Metering pump interrupt or metering pump short circuit
    F08 Fan motor interrupt or fan motor short circuit or fan motor overload or blocked
    F09 Glow plug interrupt or glow plug short circuit
    F10 Overheating
    F11 Overheating sensor interrupt or overheating sensor short circuit
    F12 Heater lock-out
    F13 unused
    F14 Overheating sensor incorrectly installed
    F15 Setpoint generator short circuit

  • old rockers
    old rockers Forum Participant Posts: 9
    edited November 2023 #4

    Thank you for your replies. I have half a tank of diesel so don't think it's a fuel problem. It could be low voltage. Going to Warwick this weekend so will have a good run, will try it gain when I get there. 

    I can't seem to locate any fuses by the heater. God knows where they are,? 

     

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