AR83.70-W-5936A | Remove/install controller board | 16.2.12 |
MODEL 375.4 with BODY 375.840 with CODE (H61) "Webasto" Air Top 2000 hot air auxiliary heater
MODEL 944 with BODY 944.899 with CODE (H61) "Webasto" Air Top 2000 hot air auxiliary heater
MODEL 950, 952, 953, 954 with BODY 942.899 with CODE (H61) "Webasto" Air Top 2000 hot air auxiliary heater
MODEL 970, 972, 974, 975, 976 with BODY 972.899 with CODE (H61) Webasto Air Top 2000 hot air auxiliary heater
MODEL 950, 952, 953, 954 with BODY 940.899 with CODE (H61) "Webasto" Air Top 2000 hot air auxiliary heater
W83.70-0645-06
1 Retaining groove
2 Control IC
3 Bolt
4 Plug connections
| Remove/Install | ||
Danger! | Risk of explosion caused by fuel vapors igniting, risk of poisoning caused by inhaling combustible gases and risk of injury caused by burns during and after operation of heater unit | Do not operate stationary heater, auxiliary heater or engine with heater booster in closed areas or when refueling. Allow heater unit to cool down after operation and wear protective gloves. | |
Danger! | Risk of explosion caused by escaping oxyhydrogen gas. Risk of injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries caused by short circuit. Risk of poisoning caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices | No fire, sparks, open flames or smoking. Wear acid-resistant gloves and clothing and safety glasses with side guards. Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground. Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers. | |
1 | Disconnect ground lead from battery | Do not interrupt main battery current in heater mode or in the power-down phase. | |
2 | Remove storage compartment | With body 942.899 only | |
3 | Remove heater | Not on bodies 375.840, 944.899 | |
Body 942.899 | |||
Bodies 940.899, 972.899 | |||
4 | Remove upper housing segment and covers | ||
5 | Detach connectors (4) on the controller board (2) | ||
6 | Unscrew bolts (3) and remove controller board (3) | Do not touch controller board tracks. Installation: The controller board must engage in the retaining groove (1). To avoid any fracturing of the controller board tighten the screws (3) carefully. | |
7 | Install in the reverse order | ||
8 | Check function of stationary heater | ||
9 | Measure emission level, adjust if necessary |
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