Webasto heater problems

alan.timms · 13th August 2019, 09:09

Hi
I fitted a Webasto engine heater some years ago - I don't have the control unit, so did the forum "bodge" and wired the green pin 4 wire (from memory: I think that's right!) to an illuminated earth switch. To switch on, I operate the switch, earthing the wire and triggering the unit. As a side question, it is a latching switch - would a simple "push to make" one have been better?
The issue is that the unit is switching itself on! Whilst driving, I noticed that the switch light comes on intermittently, usually dim, not full brightness, from time to time, and I think I can smell the Webasto exhaust. Is it an issue with the Webasto, or the switch? Any advice would be gratefully received.

13th August 2019, 09:09	#1
alan.timms Regular poster Rover 75 saloon Join Date: Nov 2011 Location: Wisbech Posts: 57 Thanks: 7 Thanked 6 Times in 3 Posts	Webasto heater problems Hi I fitted a Webasto engine heater some years ago - I don't have the control unit, so did the forum "bodge" and wired the green pin 4 wire (from memory: I think that's right!) to an illuminated earth switch. To switch on, I operate the switch, earthing the wire and triggering the unit. As a side question, it is a latching switch - would a simple "push to make" one have been better? The issue is that the unit is switching itself on! Whilst driving, I noticed that the switch light comes on intermittently, usually dim, not full brightness, from time to time, and I think I can smell the Webasto exhaust. Is it an issue with the Webasto, or the switch? Any advice would be gratefully received.