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Hi The Rotor Position Sensor on my GW501 burnt out. I obtained a new item from F&P in Auckland. The number I had for the part was 425221P but the guy said that the correct part is 420296P which is the part he sold me. They looked slightly different with more components on the original.
I have installed the 420296P item and get an error 10000011 which I believe is a repetitive Rotor Position Sensor error. The motor does not move at all.
Can anyone tell me if I have the right part and is this what is causing the error? Could the burnt out rotor sensor have damaged the motor?
Thanks very much
GrantRe: GW501 Rotor Position Sensor Problem
I found a service bulletin that told me that the item had been changed to the new number so it appears I do have the correct item. Can anyone advise what I should try next to fix this.
Re: GW501 Rotor Position Sensor Problem
Unlikely that the motor will be damaged – you should get 6.1ohms across each winding if checking. Check position of RPS wiring – the tags are marked R B Y , but people do get it wrong 😀 .
If the previous RPS literally burnt out, I suspect that the most likely problem will be the motor controller itself.
Cheers,
Penguin45.Re: GW501 Rotor Position Sensor Problem
Thanks Penguin45, is there any way of testing the motor controller before I go out and buy one? This will be the second one, it had a new one about 3 years ago. The diagnostics give an error 10000011 is this consistent with a motor controller?
Re: GW501 Rotor Position Sensor Problem
No, the fault is specifically a repetative rotor position error, ie every time it tries to operate the motor – primary fault is the RPS, which you have said was burned and replaced. Burning causes carbonisation, which leads to short circuits – these can cause problems back at the motor board. Maybe worth a visual inspection.
Secondary cause is the motor controller board, assuming that all wiring and connectors are intact.
I have a contact in Oz for recon boards if cost is an issue – regret I know of no-one in NZ.
Regards,
Penguin45.Re: GW501 Rotor Position Sensor Problem
A visual check of the motor controller board did not show any obvious damage.
Checked all wiring continuity and resistance of all components. The machine would fill ok if I manually rotated the bowl while filling. I took this to mean the new rotor sensor was ok so I purchased and fitted a rebuilt motor controller. (NZ$128 incl GST trade) That fixed the problem.
Thanks for your helpGrant
Re: GW501 Rotor Position Sensor Problem
Well believe it or not after two days of working perfectly I now have a 130 error again. No evidence of any damage on the Rotor Sensor but it appears not to be working again. Wiring looks fine. Having replaced the Rotor sensor and the motor controller I can’t see any other items that could affect it. The machine is 13 years old and I am reluctant to spend any more on it. The only thing I can think of is to try one more rotor sensor but I am worried that it might only last another 2 days or that it might have taken the motor controller with it. 🙁
Re: GW501 Rotor Position Sensor Problem
Doesn’t sound good…… No chaffed wiring or loose connections?
At 13 years old there’s no profit in throwing parts at it, maybe time to move on?
Regards,
Penguin45.Re: GW501 Rotor Position Sensor Problem
I decided to bite the bullet and give it one more chance as I can’t afford a new one at the moment. I put another rotor sensor in and it is working again. Hopefully it will last a lot longer than 2 days this time ❗
Hi GrantNZ, This is a long shot as this thread is nearly a year old. I have had the exact same problem, on my GW501, It gave an error code of 10000010, so I had a look at the rotor position sensor, sure enough it had burnt out.
I replaced it for $59 NZD. The newer 420296P was a tight squeeze but it seemed to fit eventually.
Now it shows the same error code and the motor won’t move.
Before I spend more on a new motor controller board, can ask “how long did your 2nd fix last?”
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