Volvo MD 2020

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   The warning buzzer on my engine has packed up
This is a bit concerning because if there was a problem, such as impellor breaking, the first I would know is when the engine seized

The first thing I did was to wire the buzzer direct to the battery & it did not work so I went to Maplin & purchased a cheap buzzer.
This did not work so I checked the voltage across the 2 wires to the buzzer when I depressed the heater switch. There does not seem to be any current getting to the buzzer & as it does not work when wired direct  I am concerned it has "blown" along with something else
I assume the buzzer is connected to a temperature sensor somewhere but I am not sure where
It normally goes when the heater switch is depressed & when the engine stops so that suggests it is wired in somewhere else as well  
Can someone direct me on a course of action to trace the fault
the possible option is that that a fuse has blown - Any ideas where it could be 
Any help gratefully received I do not really want a huge bill from the Volvo dealership

Daydream Believer

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samuel Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral of the Fleet Joined: 26 December 2004 Location: United Kingdom Status: Offline Points: 2770	Post Options Post Reply Quote samuel Report Post Thanks(0) Quote Reply Topic: Volvo MD 2020 Posted: 13 June 2011 at 13:18
	The warning buzzer on my engine has packed up This is a bit concerning because if there was a problem, such as impellor breaking, the first I would know is when the engine seized The first thing I did was to wire the buzzer direct to the battery & it did not work so I went to Maplin & purchased a cheap buzzer. This did not work so I checked the voltage across the 2 wires to the buzzer when I depressed the heater switch. There does not seem to be any current getting to the buzzer & as it does not work when wired direct I am concerned it has "blown" along with something else I assume the buzzer is connected to a temperature sensor somewhere but I am not sure where It normally goes when the heater switch is depressed & when the engine stops so that suggests it is wired in somewhere else as well Can someone direct me on a course of action to trace the fault the possible option is that that a fuse has blown - Any ideas where it could be Any help gratefully received I do not really want a huge bill from the Volvo dealership Daydream Believer
	Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex

echoofwight Members Profile Send Private Message Find Members Posts Add to Buddy List Captain Joined: 08 August 2007 Location: Portsmouth UK Status: Offline Points: 270	Post Options Post Reply Quote echoofwight Report Post Thanks(0) Quote Reply Posted: 13 June 2011 at 16:06
	Hi, do you have a workshop manual with a wiring diagram, if not I can email one to you, this shows the wiring for the engine and control panel
	Steve. Hanse 341 Echo of Wight, . Deep draft and rudder, white hull, Single aft cabin. Raymarine instruments. Raymarine radar. Garmin AIS. Wheel Steering, Portsmouth.

samuel Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral of the Fleet Joined: 26 December 2004 Location: United Kingdom Status: Offline Points: 2770	Post Options Post Reply Quote samuel Report Post Thanks(0) Quote Reply Posted: 13 June 2011 at 17:08
	Echoofwight That would be useful Many thanks Daydream Believer samlongley@btconnect.com
	Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex



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