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Operating Instructions 

Air Top Series Heaters 

 

Introduction

 

 

Dear Webasto Customer, 

Thank you for choosing a Webasto Air 
Top Series Heater. Air Top Series 
Heaters are used 

 

to heat cabins, boats, trucks, minibuses, vans and motor-homes and 

 

to defrost vehicle windows. 

We presume that the principle and mode of operation of your 
new heater has been explained to your complete satisfaction by 
the workshop or service center which installed the heater. In 

these operating instructions we would like to once again 
provide you with an overview of the safe use of your new 
heater. 
Repair work should only be carried out by an authorized Webasto dealer. 

 

 

Servicing and Safety Instructions 

 

1.

 

While a Webasto heater is in use, the product surface, connected 

hoses, ducting, and air outlet(s) may become hot to the touch. Contact 

with skin may cause burns. 

2.

 

Webasto heaters must be switched OFF when re-fueling at filling 

stations and/or while loading or unloading flammable materials 

for transport, to prevent the risk of explosion. Please review the 

owner’s manual for safety and use instructions. 

3.

 

The  year  in  which  the  heater  was  used  for  the  first  time  must  be 

permanently displayed on the factory plate by deleting the inapplicable 

years from the plate. 

4.

 

The heaters are not designed for heating hazardous substance 

transport compartments. 

5.

 

Claims can only be made if it can be verified that the claimant has 

complied with the servicing and safety instructions. 

6.

 

The heater may not be operated in enclosed spaces (such as 

garages) as a result of the risk of poisoning and asphyxiation, 

even if a timer is used. 

Summary of Contents for Air Top Series

Page 1: ...er is in use the product surface connected hoses ducting and air outlet s may become hot to the touch Contact with skin may cause burns 2 Webasto heaters must be switched OFF when re fueling at fillin...

Page 2: ...ir heaters is exposed to very high thermal stress and must be replaced by a genuine Webasto spare part ten years after it is used for the first time If exhaust lines pass through areas used by personn...

Page 3: ...tems at the heater 23 Do not place any items of clothing textiles or similar materials over the heater or in front of the hot air inlet and the hot air outlet 24 The heater must not be cleaned with a...

Page 4: ...cts on or against the heater before you turn it on Ventilation Option A separate switch optional allows the user to choose between heating and ventilation mode In ventilation mode the fan speed depend...

Page 5: ...the Selection button Select edit from the sub menu 3 Adjust and select day for Friday 4 Adjust and select time for 6 30AM 5 Adjust and select runtime for 60 minutes 6 Settings are saved each time the...

Page 6: ...ure Output Heater Runtime Example Air Heater Using the rotary dial and the selection button follow these steps to set your cab temperature to 70 F with a runtime of 1 hour 3 Press the Select button Us...

Page 7: ...are saved each time the selection button is pressed If the timer function will be used regularly for next day startups the ANY setting can be used in place of the day of the week With this set the ti...

Page 8: ...he Brake Input pin of the SmarTemp 3 0 connector NOTE This feature is only used in original equipment applications Enabled Heaters 3 0 Allows you to name the heater s connected to the SmarTemp through...

Page 9: ...es The indicator lights will flash red as a visual reminder The operator will have the ability to Start the 20 minute maintenance cycle or delay it via a Snooze option When Snooze is selected the PM r...

Page 10: ...during operation Heater unit overheats andindica tor flashes Switch heater unit off for at least 2 seconds and then on again Switch heater unit off for at least 2 seconds and then on again Make sure...

Page 11: ...t or short circuit F 06 Temperature sensor interrupt or temperature sensor short circuit F 07 Metering pump interrupt or metering pump short circuit F08 Fan motor interrupt or fan motor short circuit...

Page 12: ...The fuel supply is stopped if the heater overheats The heater continues to run in the same way as if it is switched off manually After the heater stops the control unit may set in fault lock out mode...

Page 13: ...the original warranty period whichever is longer The intent of the Webasto warranty is to protect the original end user of the heater from defects and provide free repair and replacement of defective...

Page 14: ...Webasto Thermo Comfort N A Inc 15083 North Road Fenton MI 48430 Technical Assistance Hotline USA 800 860 7866 Canada 800 667 8900 Org 3 2017 Rev 05 2021 P N 5012526D www webasto us www techwebasto com...

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