Relay switch

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MarkMaunder
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Relay switch

Post by MarkMaunder »

Sometimes our engine won't turn over - no power getting to the starter. I think we've determined it's a faulty relay. I'm looking for a replacement, but getting the exact part number is impossible. How important is getting that number bang on, and what do the numbers mean? Pic attached.
Relay1.jpeg
relay2.jpeg
relay3.jpeg
Relay1.jpeg
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km1125
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Re: Relay switch

Post by km1125 »

The "332014 150" would be the BOSCH part number. It's a 12V relay capable of 30 Amps.

You can probably use a bunch of similar relays in it's place, if you can't find an exact replacement. There are more numbers on the side that show the contacts, but I can't read them from that pic. The big difference in a replacement might mean the mounting method. Looks like the mounting tab is broken off yours.
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Re: Relay switch

Post by plittle2005 »

Also check the key switch itself, they can fail.
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Re: Relay switch

Post by Viper »

Those are common relays but you'll need to check if it's a 4 or 5 pin and make sure you get a 30 amp one. Post the engine serial number
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MarkMaunder
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Re: Relay switch

Post by MarkMaunder »

km1125 wrote:QR_BBPOST The "332014 150" would be the BOSCH part number. It's a 12V relay capable of 30 Amps.

You can probably use a bunch of similar relays in it's place, if you can't find an exact replacement. There are more numbers on the side that show the contacts, but I can't read them from that pic. The big difference in a replacement might mean the mounting method. Looks like the mounting tab is broken off yours.
The numbers on the side are just a schematic I believe. (pic attached)
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MarkMaunder
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Re: Relay switch

Post by MarkMaunder »

Viper wrote:QR_BBPOST Those are common relays but you'll need to check if it's a 4 or 5 pin and make sure you get a 30 amp one. Post the engine serial number
Engine - 1 engine, 1990, VOLVO, , 4100112889, 300CV 740 DP
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MarkMaunder
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Re: Relay switch

Post by MarkMaunder »

plittle2005 wrote:QR_BBPOST Also check the key switch itself, they can fail.
Good thought, but that was replaced last year. Although I am going to get another as a backup and to eliminate that possibility if it's not the relay.
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Re: Relay switch

Post by bud37 »

Have you checked power to the relay when it fails ?
FWIW.....The above is just my opinion.
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Re: Relay switch

Post by MarkMaunder »

No I haven't. I will next time it fails though. Thank you!
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Re: Relay switch

Post by MarkMaunder »

bud37 wrote:QR_BBPOST Have you checked power to the relay when it fails ?
No I haven't. I will next time it fails though. Thank you!
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