This week’s TPIs deal with the Truma error codes E133, E515 and E525. These error codes are now known and should no longer be a surprise. If this problem occurs, the dealership should be informed. For all three error codes, it is necessary to replace a part. Specifically, this involves a fan: once on the outside and twice in the heater.
Truma heater – error code E133H
– Problem: The Truma heater is not working, error code E133H in the event memory. Cause: Short circuit in the combustion air motor or wiring
Truma heater – error code E515H
– Problem: The Truma heater displays error E515H and does not work. Cause: Defective combustion air motor due to deviating speed. – Solution: Replace the
Truma heater cannot be switched on – error code E525H
– Problem: The Truma heater cannot be switched on. The event log shows the error code E525H. Cause: Defective combustion air motor due to excessive
