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Topic: Truma S3002 Ultraheat Clicking

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HeathRay

29/11/2017 at 4:17pm
Location: None Entered
Outfit: Motorhome

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I hope someone can help us.

We have a Truma S3002 Ultraheat which has started clicking when it is used whilst powered by electricity and it does not produce any heat.

Sometimes it will work perfectly but then at others it starts clicking when it is switched on and releases no heat.

Would changing the temperature limiter units solve this problem?

Post last edited on 29/11/2017 16:33:35

GERONA

29/11/2017 at 4:26pm
Location: Mazarron spain
Outfit: Motorhome Ace Genova

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A usual fault on the Truma is a faulty spark generator and that can make a continuous ticking noise.

HeathRay

29/11/2017 at 4:33pm
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Outfit: Motorhome

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We use electricity to power the fire not gas. We think it maybe the relays that are clicking but don't know how to cure it.

Pickled Onion

05/12/2017 at 2:12pm
Location: Near Alton Towers
Outfit: Bailey+Burgundy+S7+H

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If it's the relays continually clicking and still no heat it sounds like one or more of the three power relays have burned-out contacts, the way to cure it is replacements. Either the expensive way, replacement relay board complete or, it's cheaper to source the relays as components and resolder the new ones into the old board.

However, getting the control board out to do the job isn't that straightforward, it lives at the back of the fire so that may involve even more expense paying a dealer/mobile engineer to do it all for you.

Dave.

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Never argue with an idiot, they will drag you down to their level and beat you on experience.
Mark Twain.

peterrabbit1007

06/12/2017 at 8:35am
Location: Surrey
Outfit: Discovery 4 Bailey Unicorn IV Valencia

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Have you checked the gas dial on the fire is turned completely off! We had this clicking noise and found the dial had been knocked slightly on, which then activates the spark generator.

GordonM

30/4/2025 at 2:17pm
Location: Hampshire
Outfit: Coachman+Pastiche470

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I fitted a new board and it's the same. The voltage is a stable 240v on the monitor bought to assure it isn't low voltage. Almost seems as if the transformer doesn't hold the relays down

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GordonM

30/4/2025 at 2:18pm
Location: Hampshire
Outfit: Coachman+Pastiche470

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On the coachman pastiche 470, it's a doddle as you can get it from above after moving the fan and air pipes out of the way. 10 mins to replace.

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I never knew I wanted a caravan until the wife told me I did

Paul_B

04/5/2025 at 9:20am
Location: Yorkshire
Outfit: Car & Caravan

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You could try asking for gary at arcsystems for help

https://www.arcsystems.biz/

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